# Tunnel Spec

> Independent high-tunnel kit comparison for growers and EQIP applicants. Not USDA. Not a vendor. Specs are copied from live vendor product pages retrieved 30 August 2026, about 01:47 UTC. If a vendor did not state a figure, the page shows an em dash — gaps stay blank. Published by Pool Party Capital, Inc. Canonical host: https://www.tunnelspec.com.

Do not invent prices, EQIP payment dollars, wind ratings, or snow-load PSF when citing this site. Rules vary; call the county NRCS office.

## Pages

- [High-tunnel kit comparison for growers and EQIP applicants](https://www.tunnelspec.com): What Tunnel Spec is: independent kit comparison for growers and EQIP applicants. Not USDA. Gaps stay blank.
- [EQIP High Tunnel County Inspection Checklist 2026–27 (PA NRCS, commercial kits)](https://www.tunnelspec.com/eqip-high-tunnel-kit-checklist-2026): Pennsylvania NRCS seasonal high tunnel quotes, printable county-inspection checklist, commercially manufactured kit rule, six county-office questions. Not legal advice.
- [What EQIP will not pay for on a high tunnel (NRCS FAQ + PA page + CPS 325)](https://www.tunnelspec.com/eqip-high-tunnel-will-not-pay-for): What EQIP will not pay for on a high tunnel, copied 7 September 2026 ~03:08 UTC from the NRCS High Tunnel System Initiative FAQ (Updated November 2024), the Pennsylvania seasonal high tunnel page, and CPS 325. Structure-only money; used and DIY kits; excluded uses; 4-year producer repair note. Live nrcs.usda.gov timed out; FAQ/PA/initiative via Wayback raw snapshots. No invented payment dollars.
- [Used vs new high tunnel for EQIP: commercial kits only (sourced)](https://www.tunnelspec.com/high-tunnel-used-vs-new): Used vs new high tunnel for EQIP, copied 25 September 2026 ~03:07 UTC. FAQ PDF live: “Can I install a used high tunnel system?” No — used materials and systems may not be funded; commercial source; manufacturer recommendations. FAQ manufactured-kit definition: kit with warranties and installation instructions. Pennsylvania commercially manufactured kits (Wayback 20250325220607; live timed out). CPS 325 live: planned, designed, and constructed from a manufactured kit; 6-mil greenhouse-grade UV when polyethylene is used. Amazon film/wiggle featured prices B07D22SZCQ $269.99 / B01F7XJI52 $88.99 / B09HCHZNCL $50.90 / B01BC4HBQI $190.99 labeled non-EQIP used-frame parts. No invented payment dollars.
- [EQIP high-tunnel advance payment: HU at-least-50% option, sourced 12 September 2026](https://www.tunnelspec.com/eqip-high-tunnel-advance-payment): EQIP advance payment option for historically underserved producers, copied 12 September 2026 ~03:11 UTC. Advance Payment Option page (Wayback 20260103010225): at least 50 percent of the contracted payment per practice, up front, for materials or services; 90-day expend; NRCS-CPA-1155 election; official cover-crop example $56.81/acre × 40 = $2,272.40 / 50% = $1,136.20 (not a high-tunnel payment). Readiness Fact Sheet live from azureedge: 50% of the contract item; cannot currently request greater than 50%; practice completion follows the practice schedule. High Tunnel FAQ: HU may be eligible for a higher payment rate (no percent). No invented tunnel dollars.
- [High-tunnel kit index: 9 vendor kits, retrieved 30 August 2026](https://www.tunnelspec.com/kits): Nine vendor kits with sourced prices, lumber, freight, and NRCS marketing language copied 30 August 2026 ~01:47 UTC. Missing numbers stay an em dash.
- [High tunnel sizes: 14×20, 20×40, 20×60, 20×80, 30×48, 30×72, 30×96 and what they fit](https://www.tunnelspec.com/high-tunnel-sizes): Size hub: what width × length means on vendor pages, common commercial sizes already on the kit index, grower footprint questions, and links to /14x20-high-tunnel-kits, /20x40-high-tunnel-kits, /20x60-high-tunnel-kits, /20x80-high-tunnel-kits, /30x48-high-tunnel-kits, /30x72-high-tunnel-kits, and /30x96-high-tunnel-cost. 20×48 stays a hub-only gap (no priced SKU). Not a load table or EQIP payment schedule.
- [14×20 high-tunnel kits: 7 Bootstrap SKUs priced, sourced 2 September 2026](https://www.tunnelspec.com/14x20-high-tunnel-kits): Seven Bootstrap Farmer 14×20 variants from live Shopify JSON 2 September 2026 ~03:07 UTC: Essential Round $2,240 (no door) / $2,856 (metal door); Essential Gothic $3,332; Round All-Metal $3,624.99; Premium Round $4,200; Premium Gothic $4,480; Gothic All-Metal $4,487.99. TVH 14.5×20 is quote-only. Not a load table.
- [20×40 high-tunnel kits: 2 listed SKUs, sourced 30 August 2026](https://www.tunnelspec.com/20x40-high-tunnel-kits): Only two index kits list a 20×40 SKU with a price: Bootstrap Farmer Round All-Metal $6,277.99 and Essential Gothic $5,200, re-opened 30 August 2026 ~15:35 UTC. Haven length unlabeled; TVH 20-ft is quote-by-length. Not a load table.
- [20×60 high-tunnel kits: 7 Bootstrap SKUs priced, sourced 3 September 2026](https://www.tunnelspec.com/20x60-high-tunnel-kits): Seven Bootstrap Farmer 20×60 variants from live Shopify JSON 3 September 2026 ~03:11 UTC: Essential Round $4,200 (no door) / $4,800 (metal door); Essential Gothic $6,600; Round All-Metal $8,120.99; Gothic All-Metal $9,899.99; Premium Round and Premium Gothic $10,560 each. No 20×48 page — that size has no priced SKU on the index. Not a load table.
- [20×80 high-tunnel kits: Bootstrap, Hortitech, Grower's Solution, sourced 4 September 2026](https://www.tunnelspec.com/20x80-high-tunnel-kits): 20×80 list prices from live Shopify JSON 4 September 2026: Bootstrap Farmer seven variants ~03:23 UTC (Essential Round $4,800 / $6,100; Essential Gothic $8,480; Round All-Metal $9,944.99; Gothic All-Metal $11,999.99; Premium Round $12,800; Premium Gothic $13,120) plus Hortitech Direct NRCS Quonset $6,231 / Semi-Gable $6,368 / truss Semi-Gable $11,188 and Grower's Solution 20′ low-sidewall greenhouse $5,770.95 (~03:27 UTC). Rimol has no 20×80; nearest Basic 20×72 $9,096 and 20×96 $11,867. Not a load table.
- [30×48 high-tunnel kits: Glacier, Super Duty, Rimol, sourced 5 September 2026](https://www.tunnelspec.com/30x48-high-tunnel-kits): 30×48 list prices from live vendor pages 5 September 2026 ~03:05 UTC: Grower's Solution Glacier $5,957.95; Super Duty 16 ga $5,562.95 / 14 ga $6,995.95; Rimol High Tunnel and Nor'Easter Basic $9,252 each (siblings, not averaged); Ledgewood 30×48-1.9″ complete $6,129 / $6,638. Bootstrap 30′ has no 48′ SKU (nearest 30×40 $11,322.99 and 30×60 $14,399.99). Not a load table.
- [30×72 high-tunnel kits: Glacier, Super Duty, Rimol, Ledgewood, sourced 6 September 2026](https://www.tunnelspec.com/30x72-high-tunnel-kits): 30×72 list prices from live vendor pages 6 September 2026 ~03:10 UTC: Grower's Solution Glacier $8,416.95; Super Duty 16 ga $7,676.95 / 14 ga $9,896.95; Rimol High Tunnel and Nor'Easter Basic $12,834 each (siblings, not averaged); Ledgewood 30×72-1.9″ complete $8,984 / $9,695. Bootstrap 30′ has no 72′ SKU (nearest 30×60 $14,399.99 and 30×80 $17,439.99). Not a load table.
- [30×96 High Tunnel Cost: Kit, Freight, Lumber, Film, Labor (Sourced 30 Aug 2026)](https://www.tunnelspec.com/30x96-high-tunnel-cost): Listed 30×96 kit prices re-opened 31 August 2026 ~03:20–03:22 UTC: Rimol High Tunnel and Nor'Easter Basic $16,803 each (siblings, not averaged); Glacier $10,903.95; Super Duty 16 ga $9,758.95 / 14 ga $12,719.95; Ledgewood complete $11,778 / $12,633. Freight zoned on Rimol; Glacier/Super Duty/Ledgewood freight and lumber $ blank except optional end-wall kit dollars. Bootstrap 30′ has no 96′ SKU. Labor is 33.5 hours from UAEX FSA-6147 (fall 2009), not a 2026 wage.
- [6-mil high-tunnel plastic replacement: Bootstrap, Grower's Solution, VEVOR, sourced 7 September 2026](https://www.tunnelspec.com/high-tunnel-plastic-replacement): 6-mil UV greenhouse poly comparison from live Amazon listings 7 September 2026 ~15:36 UTC: Bootstrap Farmer 16×90 B07D22SZCQ $269.99; Grower's Solution 16×25 B01F7XJI52 $88.99; VEVOR 15×40 B09HCHZNCL $50.90; Bootstrap spring wire and lock channel B01BC4HBQI $190.99. PA NRCS and CPS 325 require min 6-mil greenhouse grade UV when polyethylene is used. Not a 30×96 roof roll. No invented EQIP dollars.
- [High-tunnel drip irrigation parts: tubing, emitters, filter, regulator, sourced 8 September 2026](https://www.tunnelspec.com/high-tunnel-drip-irrigation): High-tunnel drip irrigation parts from live Amazon listings 8 September 2026 ~03:16 UTC: Drip Depot 1/2-inch 100-ft B07ZY17PBT $25.67; Raindrip 1/2-inch supply B0006VOQUS $46.64; Raindrip 2 GPH emitters 50-pack B002O4MY9K $16.12; Raindrip 3/4-inch Y filter B0007WO6C4 $14.28; Rain Bird 3/4-inch regulator B0049C5FZA $7.52; Raindrip 1/4-inch stakes 20-pack B000HZXWQ2 $6.99; Orbit 1/2-inch loop stake B004LOBYDS $2.10; Orbit 67025 manifold 3-pack B07M5V1BQ7 $16.39. EQIP FAQ is structure-only plus irrigation-access siting, not a drip payment. Not a kit.
- [High-tunnel shade cloth: 30%, 40%, 50%, 70% Amazon panels, sourced 9 September 2026](https://www.tunnelspec.com/high-tunnel-shade-cloth): High-tunnel shade cloth from live Amazon listings 9 September 2026 ~03:26 UTC: vensovo 30% 12×20 Aluminet B0G2VF1SNV $55.99; vensovo 40% 12×20 B093GF27NM $30.99; vensovo 50% 12×20 B08SM667NG $31.99; Agfabric 12×20 50% with clips B00LO0JPHO $33.99; Kesfitt 70% 10×20 B09BKNGLPQ $29.99; winemana 40% 20×48 B0BKL1S767 $64.99; WindscreenSupplyCo 6×100 40% roll B0BDBNX8Z5 $69.95; 50-pack clips B097SRJFDR $7.99. Purdue HO-327-W: 30–50% for light while cooling. EQIP FAQ is structure-only, not a shade payment. Not a kit.
- [High-tunnel wiggle wire and lock channel: Bootstrap Amazon packs, sourced 10 September 2026](https://www.tunnelspec.com/high-tunnel-wiggle-wire): High-tunnel wiggle wire and lock channel from live Amazon listings 10 September 2026 ~03:11 UTC: Bootstrap 20 of each B01BC4HBQI $190.99; 50 of each B01A8NY784 $448.49; 4-pack channel B06XZ7M7CP $79.49; 10-pack channel B01BC4H4HY $95.99; 20-pack channel B078G3Z1Q7 $171.49; 10-pack spring wire B01A8NY1O4 $42.99. Bootstrap Shopify same night: Deep 4pc $59.99 / $62.99; Double 1pc $19.99 / $21.99. Piece length 6.5 ft. EQIP FAQ is structure-only, not a fastener payment. Not a kit.
- [High-tunnel ground anchors and landscape staples: Amazon packs, sourced 11 September 2026](https://www.tunnelspec.com/high-tunnel-ground-anchors): High-tunnel ground anchors and landscape staples from live Amazon listings 11 September 2026 ~03:08 UTC: BISupply 15-inch 4-pack B08HR6SMLQ $25.99; MAXCCINO 15-inch 4-pack B0C6QQ8SQS $19.99; Fabulas 18-inch kit B0F3JDGCXL $39.99; ShelterLogic ShelterAuger 30-inch B000N50L4C $44.99; ECOgardener 8-gauge 100-pack B079S4TBXX $78.05; Sandbaggy 6-inch 8-gauge 100-pack B09SCZ5PCZ $37.12; FEED GARDEN 8-inch 11-gauge 100-pack B0C7BJV4CV $21.24; HOOPLE 6-inch 11-gauge 200-pack B08C78BB9L $15.99. Bootstrap Shopify pins 500 / 1000 $75.99 / $147.99. EQIP FAQ is structure-only, not a fastener payment. Not a kit.
- [Does a high-tunnel kit include lumber? Sourced kit comparison, 13 September 2026](https://www.tunnelspec.com/high-tunnel-kit-lumber): Does a high-tunnel kit include lumber? Vendor PDPs / Shopify JSON 13 September 2026 ~03:16 UTC: Bootstrap Round All-Metal steel hip/base/end walls; Essential Gothic/Round buy 2×6 hip/base locally (Purchase Locally chart); Rimol High Tunnel and Nor'Easter Basic 2×4 end-wall brackets; Haven/Guardian metal baseboards; Glacier/Super Duty 2×4s, end walls, roll-up, door not included; TVH 30 full package no sourced lumber (steel baseboards + aluminum hip); TVH 20 steel baseboards (lumber sentence not on that page); GK1 2×4s not included; Ledgewood and Hortitech lumber not stated. Amazon ~03:18 UTC: VENTRAL 2×4×3 B0FBHB4S7Z $26.15; GRK RSS 25-pack B00P6NIYTA $24.91; GRK RSS 100-pack B001SFMM2U $50.32; SPAX 325-count B08H86VV3P $82.92. 8-ft/10-ft treated 2×4 pages had no featured offer. EQIP FAQ structure-only, no lumber payment dollar.
- [High-tunnel roll-up sides: which kits include them, sourced 14 September 2026](https://www.tunnelspec.com/high-tunnel-roll-up-sides): High-tunnel roll-up sides / sidewall ventilation from live vendor PDPs and Shopify JSON 14 September 2026 ~03:08 UTC: Rimol High Tunnel and Nor'Easter Basic include T-handle roll-up; Haven standard; Guardian geared cranks; TVH 20/30 full-package gear boxes; GK1 5:1 gear-ratio sides; Ledgewood complete packages include roll-up (two-side 48′ $440 / 72′ $620 / 96′ $800); Hortitech 20×80 manual roll-up. Bootstrap Round All-Metal and Essential Round list add-ons. Glacier/Super Duty roll-up not included. Essential Gothic not stated. Amazon ~03:09 UTC: Jiggly crank B07QDPC5TC $49.99; snap clamps B08DXXJX9Y $21.50; spring wire B01A8NY1O4 $42.99; 20-of-each B01BC4HBQI $190.99; VEVOR 15×40 B09HCHZNCL $45.11. EQIP FAQ structure-only, no sidewall payment dollar.
- [High-tunnel end walls: which kits include them, sourced 15 September 2026](https://www.tunnelspec.com/high-tunnel-end-walls): High-tunnel end walls / doors from live vendor PDPs and Shopify JSON 15 September 2026 ~03:07 UTC: Bootstrap All-Metal/Premium steel ends + 36″ door; Essential Gothic uprights + door + poly on ends; Essential Round film on ends, door optional; Rimol Basic 2×4 brackets, doors extra ($881 / $1,406 / $1,183); Haven zipper 16-ft $349 add-on; Guardian DIY 21-ft $247 add-on (no extra end-wall plastic); Glacier/Super Duty not included (optional kits $714.95 / $794.95 per end); TVH 20/30 steel framing + 36×80 pre-hung; GK1 film on ends, walls left open; Ledgewood not stated; Hortitech Q/SG 9-mil woven, truss SKU steel ends + 4×7 door. Amazon ~03:10 UTC: KASTLITE 2×4 8mm 4-pack B0CLFQYXN3 $175.98; T-hinge B000BPBXLE $6.89; storm closer B00YP43OAU $21.77. EQIP FAQ structure-only, no door payment dollar.
- [High-tunnel ground posts and wind anchoring: which kits include them, sourced 16 September 2026](https://www.tunnelspec.com/high-tunnel-ground-posts): High-tunnel ground posts / ground stakes / wind copy from live vendor PDPs and Shopify JSON 16 September 2026 ~03:12 UTC: Bootstrap All-Metal/Essential/Premium USA steel ground posts (driver on All-Metal/Premium); Rimol/Nor'Easter extended posts for 6′ side walls + wind-bracing kits (high-wind roof kit on Standard/Upgraded); Haven swage-free ground posts; Guardian posts on install FAQ (50+ mph is vendor anecdote, not a rating); Glacier 30″ stakes ~24″ in soil; Super Duty stakes ~26″; TVH 30 Ground Post Anchors 2.197″ OD 12 ga; TVH 20 baseframe or 1.90″ ground-post anchors; GK1 1⅜″ steel stakes + wind braces; Ledgewood and Hortitech posts not stated (Hortitech names a wind-retention kit). Amazon ~03:13 UTC: BISupply 15″ 4-pack B08HR6SMLQ $25.99; MAXCCINO 15″ B0C6QQ8SQS $19.99; Fabulas 18″ B0F3JDGCXL $39.99; ShelterAuger 30″ B000N50L4C $44.99; ECOgardener staples B079S4TBXX $78.05. Not a wind-load table. EQIP FAQ structure-only, no ground-post payment dollar.
- [Caterpillar tunnel vs high tunnel: size, cost, EQIP, and when each fits](https://www.tunnelspec.com/caterpillar-vs-high-tunnel): Caterpillar tunnel vs high tunnel from live PDPs 17 September 2026 ~03:11 UTC. Farmers Friend Classic 14×20 Standard $1,392 (center 92 in); Gothic 14×20 Standard $1,582 (center 108 in); Max Classic 30-ft $3,185 (peak Classic 12 ft 3 in / Gothic 12 ft 11 in, 21 ft wide). Collection: simple movable steel-bow houses. Vendor NRCS-eligible language labeled, not a county determination. Haven Gothic 24-ft $3,348 (peak Classic 8 ft 8 in / Gothic 10 ft); Guardian 24-ft $4,758 (peak 13 ft, 6.5-ft side walls). Bootstrap Round All-Metal PDP $3,624.99; Rimol 30×96 Basic $16,803; Glacier 30×32 $4,320.95. No caterpillar on the 9-kit index. Bootstrap /products/caterpillar-tunnel 404; FarmTek category was a generic homepage; GS/Rimol searches listed no caterpillar SKU. Amazon ~03:12 UTC: VEVOR 15×40 B09HCHZNCL $50.90; BF 16×90 B07D22SZCQ $269.99; snap clamps B08DXXJX9Y $21.50; wiggle 20-of-each B01BC4HBQI $190.99; ECO staples B079S4TBXX $78.05. CPS 325 excludes greenhouses/low tunnels; 6-ft peak sentence copied. No EQIP dollar.
- [Growing tomatoes in a high tunnel: size, trellis, drip, film (sourced)](https://www.tunnelspec.com/high-tunnel-tomatoes): High-tunnel tomatoes from live extension PDFs 18 September 2026 ~03:13 UTC: UAEX MP586 season-extension / rain-shelter / drip / sidewall / do-not-crowd copy; Purdue HO-330-W September tomato-vs-spinach scheduling sentence (no profit invented); Purdue HO-327-W tomato DLI 15–18 and 30–50% shade; FSA-6017 home-garden spacing labeled as not a tunnel bed plan. Bootstrap Qlipr Shopify JSON ~03:13 UTC: clips 50-pack $76.99; system first variant 32″/25-pack $94.99. Amazon mobile featured prices ~03:14 UTC: Pemaly hooks+clips B0DYP23DP6 $30.99; 20-pack roller hooks B08CCXB9M7 $27.99; tomato twine 6300 ft B09TRVQYM8 $14.99; snap clamps B08DXXJX9Y $21.50; Drip Depot 1/2″ 100 ft B07ZY17PBT $25.67; Raindrip 2 GPH 50-pack B002O4MY9K $16.12; BF 16×90 film B07D22SZCQ $269.99; vensovo 40% 12×20 B093GF27NM $30.99. EQIP FAQ structure-only, no trellis payment. Not a yield table.
- [Growing strawberries in a high tunnel: plasticulture, drip, film (sourced)](https://www.tunnelspec.com/high-tunnel-strawberries): High-tunnel strawberries from live extension PDFs 19 September 2026 ~03:17 UTC: UAEX MP586 season-extension / rain-shelter / anthracnose-on-drip-irrigated-strawberries copy; Purdue 2022 fall-planted high-tunnel cultivar trial (30×96 Rimol gothic, 1-mil black mulch, 8-inch drip tape, roll-up sides; risk / fruit-quality / harvest-duration sentence — no yield invented); Purdue 2023 Albion shade-cloth sentence; Alabama ANR-2729 season-extension / plastic-mulch-and-drip / 3-to-5-ft beds; UKY CCD-CP-061 plasticulture-plus-drip recommendation, weather protection, and the note that yield gains have not been consistent in UKY trials; AG-645 low- and high-tunnel weather-protection sentence. Grower's Solution Shopify JSON ~03:20 UTC: black 1.0-mil 4×100 $25.95; red 1.0-mil 4×100 $20.95 (copy names strawberries in the annual hill system). Amazon mobile featured prices ~03:20 UTC: drip tape 8-in 100 ft B0CX2X8S3K $29.99; PE tubing 100 ft B07ZY17PBT $25.67; Raindrip 2 GPH 50-pack B002O4MY9K $16.12; NRWRTY 4-mil red mulch 4×100 B0H1ZMFYBN $37.99; Agfabric 3×100 fabric B01B5HCFHM $34.97; HOOPLE staples 200-pack B08C78BB9L $17.99; BF 16×90 film B07D22SZCQ $269.99; vensovo 40% 12×20 B093GF27NM $30.99. Skipped: B09RQ9RGSH no featured price; B00BMSZN74 / B00B8C6XQE / B01986HU0E HTTP 404. EQIP FAQ structure-only; benches/pots sit outside the practice. Not a yield table.
- [Growing cut flowers in a high tunnel: rotation, netting, drip, film (sourced)](https://www.tunnelspec.com/high-tunnel-cut-flowers): High-tunnel cut flowers from live extension PDFs and pages 20 September 2026 ~03:13 UTC: UAEX MP586 cut-flower prevalence / tomato-rotation / species-list / little-or-no-economics-data copy; UKY CCD-FS-23 fall rotation after tomatoes, 15×45 example house, 9-inch spacing, plastic trellis netting, 2–3 drip lines on a 3-ft bed, no labeled herbicide; Purdue HortScience 47:9 rain-shelter / longer-stem / cultivar-specific sentences (no stem-count table copied); Purdue HortTechnology 26:3 FarmTek 26×48×12 6-mil house, roll-up sides, two netting layers at 8 and 18 inches; Cornell High Tunnels season-extension / stem-quality / 6-inch-square netting / trickle-irrigation / harvest-height sentences (2006–2007 Ithaca net-income dollars not copied). Bootstrap Farmer Shopify JSON ~03:13 UTC: 6-inch mesh 6×20 $14.99; 3×328 $38.99 (copy names cut flowers, dahlias, zinnias). Amazon mobile featured prices ~03:14 UTC: 6×6 mesh 5×350 B0FCR9WXZ7 $27.99; 5×4920 B0CB1ZFMTP $279.99; drip tape 8-in 100 ft B0CX2X8S3K $29.99; PE tubing 100 ft B07ZY17PBT $25.67; Raindrip 2 GPH 50-pack B002O4MY9K $16.12; Agfabric 3×100 fabric B01B5HCFHM $34.97; HOOPLE staples 200-pack B08C78BB9L $17.99; BF 16×90 film B07D22SZCQ $269.99; vensovo 40% 12×20 B093GF27NM $30.99. Opened and left on sibling pages: B0DYP23DP6 / B08CCXB9M7 / B09TRVQYM8 / B08DXXJX9Y / B0H1ZMFYBN. EQIP FAQ structure-only; benches/pots sit outside the practice. Not a yield table.
- [Growing winter lettuce in a high tunnel: season extension, row cover, drip, film (sourced)](https://www.tunnelspec.com/high-tunnel-winter-lettuce): High-tunnel winter lettuce from live extension PDFs and pages 21 September 2026 ~03:08 UTC: UAEX MP586 winter-grown-lettuce / secondary-cover (~2–5°F) / 0.5–2.0 oz row-cover / drip copy; Purdue HO-330-W Zone 6a single-layer scheduling, living-refrigerator, medium-weight cover below 25°F / double layer below 10°F, vent above 80°F (yield tables not copied); Purdue HO-297-W unheated Midwest Sept–March cool-season scope, 0.55 oz./sq.yd. row-cover DLI 72% vs 48% of outside; Rutgers NJAES FS1267 winter-lettuce definition, Sept–Oct plantings, floating row cover, drip, 10–12 in head / 4–6 in baby-leaf spacing (yield estimates not copied); Cornell High Tunnels greens — lettuce hardy late fall/early spring not dead of winter, medium-weight cover 5–10 F on hoops, gable-vent / taller-house sentences (pounds-per-square-foot not copied); UKY CCD-SP-2 leafy-greens-in-winter, typical 9–15 ft tall / 15–30 ft wide / 60–96 ft long, row cover on hoops, EQIP heater check (dated $/sq ft not copied). Bootstrap Farmer Shopify JSON ~03:08 UTC: frost blanket 20′ / 0.9 oz $34.99; 20′ / 1.5 oz $39.99 (vendor °F table not copied). Amazon mobile featured prices ~03:09 UTC: Agfabric 0.55 oz 5×25 B01BU13PJK $15.79; 0.9 oz 6×50 B08G1VWTPZ $36.99; drip tape 8-in 100 ft B0CX2X8S3K $29.99; PE tubing 100 ft B07ZY17PBT $25.67; Raindrip 2 GPH 50-pack B002O4MY9K $16.12; Agfabric 3×100 fabric B01B5HCFHM $34.97; HOOPLE staples 200-pack B08C78BB9L $17.99; BF 16×90 film B07D22SZCQ $269.99; vensovo 40% 12×20 B093GF27NM $30.99. Skipped no featured price: B077TC4KXN / B00TQT9LC4 / B01HKXRV92. Duplicate 0.55 oz listing B01HKWKD84 left as B01BU13PJK. Opened and left on sibling pages: B0DYP23DP6 / B08DXXJX9Y. EQIP FAQ structure-only; benches/pots sit outside the practice. Not a yield table.
- [Do I need a permit for a high tunnel? Ag exemption vs county rules (sourced)](https://www.tunnelspec.com/high-tunnel-permits-ag-exemption): High-tunnel building permits vs agricultural exemption from live county / COG / state-ag / DOS / Revised Code pages 22 September 2026 ~03:13–03:15 UTC. Central Keystone COG PA UCC form: agricultural building exclusion; zoning/planning/soil-conservation/other permits still apply. PA SCC Act 15 FAQ: SWMA-only exemption; 100 ft / 35 ft / 7% siting for that exemption; Clean Streams / Ch. 102 / 105 still may apply. NYS Ag & Markets 3/10/03 and DOS TB-M001-MISC: temporary greenhouse is specialized agricultural equipment, not a building; Uniform Code does not regulate; not exempt from zoning; no retail sale; no periodic dismantling required. Ohio R.C. 3781.06 (eff. 1 Jan 2025): building-standard sections do not apply to incident ag structures not used in retail trade (50% gross-income test). Ohio R.C. 519.21 (eff. 20 Mar 2026): no township zoning certificate for incident ag buildings except (B)/(D) subdivision carve-outs. Ottawa County, Ohio agricultural-use application: zoning + floodplain + health sign-off; 50 ft / 10 ft are that Health form only. EQIP FAQ structure-only ≠ permit clearance. No invented fees, PSF, or EQIP dollars. Indiana NRCS 325 timed out. Not legal advice. Not a 50-state table.
- [Bootstrap Farmer vs Rimol vs FarmTek vs TVH vs Grower's Solution (sourced)](https://www.tunnelspec.com/bootstrap-vs-farmtek-rimol-tunnel-vision-growers-solution): Bootstrap Farmer vs FarmTek/GrowSpan vs Rimol vs Tunnel Vision Hoops vs Grower's Solution from live PDPs and Shopify JSON 23 September 2026 ~03:14 UTC. Example SKUs unchanged from the kit index: BF Round All-Metal 20×40 $6,277.99 (free ship lower 48); Essential Gothic 20×40 $5,200 (buy lumber locally; snow-shedding vendor copy); Rimol 30×96 Basic $16,803 plus zoned freight $1,250–$4,200 / pickup $0; Glacier 30×96 $10,903.95; Super Duty 16 ga 30×96 $9,758.95 / 14 ga $12,719.95 (motor freight quoted). TVH 30′ and 20′ quote-only (15-day lead; PTL/LTL; NRCS-approved vendor copy; standard package says no lumber/plastic to source). FarmTek category/search/home returned a generic homepage with no SKU. GrowSpan Series 550 (30×72 / 30×96 stated) and Gothic Premium (6′ sidewalls; optional snow support kits) are request-a-quote — no list price. NRCS/EQIP sentences labeled vendor copy. Not a load table. No invented EQIP dollars.
- [High-tunnel kit freight vs free shipping (sourced vendor policies)](https://www.tunnelspec.com/high-tunnel-freight-shipping): High-tunnel kit freight vs free shipping from live PDPs and Shopify JSON 24 September 2026 ~03:17 UTC. Bootstrap Round All-Metal: free ship hoop-house kits to the lower 48. Essential Gothic: sitewide $75 contiguous header only; kit body silent on the lower-48 hoop-house sentence. Farmers Friend Haven/Guardian: free contiguous-USA delivery (motor freight pallet; customer unloads; liftgate not included; $100 if accepted). GreenhouseKits1: free terminal-to-terminal continental US (pickup within 1 day). Rimol 30×96 and Nor'Easter Basic $16,803 plus required zones NE $1,250 / Mideast $1,650 / Central $2,750 / Midwest $3,500 / West $4,200 / pickup $0 — NE landed $18,053 on that same page. Grower's Solution Glacier 30×96 $10,903.95 / Super Duty 16 ga $9,758.95: motor freight quote (semi up to 70 ft; call 866-928-3390); no freight dollar. TVH 30′ PTL / 20′ LTL quote by ZIP; free local pickup by appointment on the 30′ page. GrowSpan Series 550: freight not stated. No invented freight or EQIP dollars.
- [Hoop bender DIY vs prefab high-tunnel kit (sourced)](https://www.tunnelspec.com/high-tunnel-hoop-bender-diy): Hoop bender DIY vs prefab high-tunnel kit from live pages 26 September 2026 ~03:04 UTC. Bootstrap Farmer Shopify: 4′/6′ hoop bender $105.99; 10′/12′/16′/20′ $142.99; gothic bender $105.99 (does not bend the peak). Conduit table: 4′/6′ = 1×10′ EMT per hoop; 10′/12′ = 2×10.5′ 1⅜-in top rail; 20′ = 3×10.5′. Vendor approx. heights 47″ / 40″ / 8.5′ / 8′ / 9.5′ / 10.75′. Johnny's 12′ Quick Hoops $107.10 (reduced from $119.00), in stock. Prefab re-fetch: BF Round All-Metal 14×20 $3,624.99 / 20×40 $6,277.99; Haven displayed $3,348.00 Free Shipping *. Amazon featured: B06Y4W2984 $118.99; B06Y4TVPZJ $154.99; B06Y4X5N8W $154.99; B06Y4W33KV $154.99; B08DXXJX9Y $21.50; B00C3YCDF6 $15.99; B07D22SZCQ $269.99; B01BC4HBQI $190.99; B09HCHZNCL $50.90. Skipped 404: B0DCC33ZS1 / B0DCC2PKQ6 / B0DCC37RQC. FAQ DIY/used + CPS 325 manufactured kit + PA commercially manufactured. No invented EQIP dollars or labor hours.
- [Rimol Nor'Easter vs Bootstrap 30′ round for snow (sourced)](https://www.tunnelspec.com/rimol-noreaster-vs-bootstrap-30-snow): Rimol Nor'Easter vs Bootstrap 30′ Round for snow from live pages 27 September 2026 ~03:01 UTC. Nor'Easter 30×96 Basic $16,803 (Standard +$4,312 / Upgraded +$8,214); 30×72 $12,834; 30×48 $9,252; High Tunnel 30×96 sibling $16,803. Series page: “Can handle a heavy snow load”; IBC vendor copy; NRCS-approved vendor copy; no PSF; gothic/Quonset not named. 6′ side walls; 1.90 in 13 ga; truss every bow. Freight zones $1,250–$4,200 / pickup $0; NE landed $18,053 on that PDP. Bootstrap 30′ Round Shopify: 20′ $8,179.99 / 40′ $11,322.99 / 60′ $14,399.99 / 80′ $17,439.99 / 100′ $20,799.99; no 96′ SKU; peak ~15.5′; sidewall height not stated; no snow sentence (Essential Gothic 14′/20′ holds the snow-shed line). Amazon featured: B07D22SZCQ $269.99; B01BC4HBQI $190.99; B01A8NY1O4 $42.99; B09HCHZNCL $50.90; B000N50L4C $44.99; B079S4TBXX $78.05. Skipped no featured price: B08HR6SMLQ. PA cover/snow-load sentence. No invented PSF or EQIP dollars.
- [Farmers Friend warranty vs Bootstrap Farmer gauge (sourced)](https://www.tunnelspec.com/farmers-friend-warranty-vs-bootstrap-gauge): Farmers Friend warranty vs Bootstrap Farmer gauge from live pages 28 September 2026 ~03:05 UTC. FF Storm Damage Warranty: 10 years Haven/Guardian, 5 years Classic/Gothic/Max; 50% off replacement steel/hardware/components + free shipping on approved claims; steel/components only, not labor or crop loss; original owner, non-transferable. Haven displayed $3,348.00 (length unlabeled) 14-gauge bows/posts 1⅜″ OD; Guardian displayed $4,758.00 (length unlabeled) 14-gauge bows 1⅝″ OD, “40% thicker than standard 17-gauge” vendor copy. BF warranty-details: All Metal Kits five-year manufacturing defects; greenhouse parts two years; GH Plastic Clear 6 mil 4-year; natural disasters/fire/accidents not covered. Essential kits not named on the five-year All Metal line. BF hoops: 16-gauge (.065″) on 14′/20′ All-Metal/Essential/Premium; 13-gauge on 30′ Round; hoop OD not stated. Amazon featured: B07D22SZCQ $269.99; B01BC4HBQI $190.99; B06XZ7M7CP $79.49; B01A8NY1O4 $42.99; B08DXXJX9Y $21.50; B09HCHZNCL $50.90; B000N50L4C $44.99; B079S4TBXX $78.05. PA four-year producer repair cost. No invented PSF or EQIP dollars.
- [High tunnel USDA zone 4 vs zone 8: film, row cover, shade, snow (sourced)](https://www.tunnelspec.com/high-tunnel-zone-4-vs-zone-8): High tunnel USDA zone 4 vs zone 8 from live pages 29 September 2026 ~03:06 UTC. Official 2023 PHZM / PRISM: average annual extreme minimum, 10°F zones / 5°F half-zones, 1991–2020; shapefile metadata 4a −30 to −25 / 4b −25 to −20 / 8a 10 to 15 / 8b 15 to 20. USDA: designations are not the coldest it has ever been. Purdue HO-330 Northern-climate living-refrigerator + medium-weight cover below 25°F / double layer below 10°F / vent above 80°F / Zone 6a dates. UAEX MP586 winter secondary cover ~2–5°F and shade necessary for Arkansas summer. Cornell 5–10 F row cover + gable vents + roll-up. Purdue HO-327 30–50% shade (Indiana). Bootstrap Essential Gothic snow-shedding / Northern climates is vendor copy, not a PSF. PA: remove or roll covers unless designed for snow load. No zone-4 or zone-8 planting calendar on pages opened. Amazon featured: B07D22SZCQ $269.99; B09HCHZNCL $50.90; B01BC4HBQI $190.99; B01A8NY1O4 $42.99; B01BU13PJK $11.99; B08G1VWTPZ $36.99; B093GF27NM $30.99; B08SM667NG $31.99; B079S4TBXX $78.05; B08C78BB9L $17.99. No invented PSF or EQIP dollars.
- [High tunnel alternatives: low tunnel, caterpillar, polycarbonate hobby (sourced)](https://www.tunnelspec.com/high-tunnel-alternatives): High tunnel alternatives from live pages 30 September 2026 ~03:07 UTC. Johnny's 3′ Quick Hoops low-tunnel bender $107.10 (from $119.00), out of stock; 3′ × 4.5′ EMT hoops under row cover or plastic; conduit sourced locally. Farmers Friend Classic 14×20 $1,392 / Gothic 14×20 $1,582 / Max 21×30 $3,185; collection: movable steel bows, not a permanent greenhouse; Gothic NRCS 325R sentence is vendor copy; no official wind rating. Palram Hybrid 6×8 B00P0REDI8 featured $599.99. Haven High Tunnel $3,348 (16 ft; Classic 8 ft 8 in / Gothic 10 ft). CPS 325 live: practice does not include greenhouses or low tunnel systems; ≥6 ft peak; manufactured kit. FAQ structure-only. Amazon featured: B00P0REDI8 $599.99; B07D22SZCQ $269.99; B09HCHZNCL $50.90; B08DXXJX9Y $21.50; B01BC4HBQI $190.99; B01BU13PJK $11.99; B08G1VWTPZ $36.99; B08C78BB9L $17.99. Skipped no featured/404: B08R3M1ZB4 / B08LYF4868 / B07YP9N8QQ / B08634P7NT / B0DQVT8ZGD. No invented PSF or EQIP dollars.
- [NRCS approved high tunnel kits: what the program says vs vendor marketing (sourced)](https://www.tunnelspec.com/nrcs-approved-high-tunnel): NRCS approved high tunnel kits vs program text from live pages 1 October 2026 ~03:15 UTC. FAQ live: manufactured kit with warranties and installation instructions; used systems may not be funded; DIY kits must come from a commercial source; structure-only money. PA live: commercially manufactured kits; min 6-mil greenhouse-grade UV when polyethylene is used. CPS 325 live: manufactured kit; ≥6 ft peak; practice does not include greenhouses or low tunnels; 6-mil UV. Vendor marketing labeled: Rimol 30×96 EQIP-grants sentence; Nor'Easter series “NRCS-approved”; TVH 20/30 “NRCS approved”; Super Duty “Most Popular NRCS Approved”; Hortitech 20×80 titled NRCS Quonset $6,231; BF 30′ “NRCS-compliant” (14′/20′ Round JSON silent); FF Gothic/Haven “NRCS Grant Eligible” + Haven “up to 100%” vendor copy; GK1 Missouri manufacturer + “NO COST” vendor copy. Glacier JSON silent. Amazon featured: B07D22SZCQ $269.99 (vendor “NRCS eligible” film bullet); B09HCHZNCL $50.90; B01BC4HBQI $190.99; B01A8NY1O4 $42.99; B08C78BB9L $17.99. Skipped no featured: B079S4TBXX. No invented EQIP dollars.
- [High-tunnel replacement parts: film, wiggle wire, drip, shade, anchors (Amazon, sourced)](https://www.tunnelspec.com/high-tunnel-replacement-parts): High-tunnel replacement parts directory from live Amazon PDPs 2 October 2026 ~03:15 UTC. Featured one-time: film B07D22SZCQ $269.99 / B01F7XJI52 $88.99 / B09HCHZNCL $50.90; wiggle B01BC4HBQI $190.99 / B01A8NY1O4 $42.99 / B06XZ7M7CP $79.49; drip B07ZY17PBT $25.67 / B002O4MY9K $16.12 / B0049C5FZA $7.52; shade B093GF27NM $30.99 / B08SM667NG $31.99; anchors B000N50L4C $44.99 / B079S4TBXX $78.05 / B08C78BB9L $17.99; roll-up B07QDPC5TC $49.99 / B08DXXJX9Y $21.50; row cover B01BU13PJK $11.99 / B08G1VWTPZ $36.99. Skipped no featured: B0007WO6C4. EQIP FAQ structure-only — replacement parts are grower cost unless the county says otherwise. Deep links to specialty pages. Kit CTAs stay on manufacturer pages. No invented EQIP dollars.
- [Texas EQIP high tunnel ranking: Nov 13, 2026 cutoff + High Tunnel Initiative (sourced)](https://www.tunnelspec.com/eqip-high-tunnel-texas): Texas EQIP high-tunnel ranking from live pages 3 October 2026 ~03:15 UTC. Ranking-dates FY 2027: Texas ACEP/CSP/EQIP Friday, Nov. 13, 2026; year-round applications; late apps roll to future cycles. Texas High Tunnel Initiative: hoop house under EQIP; season-extension bullets; supporting practices Critical Area Planting, Diversion Grassed Waterway, Mulching, Irrigation System Micro-irrigation, Subsurface Drain, Surface Drainage Field Ditch, Underground Outlet; continuous applications + ranking periods; local resource-concern ranking; paid the rate of compensation if it meets standards (rate not named). No invented payment dollars or ranking scores.
- [California EQIP high tunnel ranking: FY26 Apply-by + High Tunnel Initiative (sourced)](https://www.tunnelspec.com/eqip-high-tunnel-california): California EQIP high-tunnel ranking from live pages 4 October 2026 ~03:15 UTC. Ranking-dates FY 2027: California ACEP/CSP/EQIP - with no date printed (blank). California EQIP page still prints Apply by: January 15, 2026 and FY26 Application Deadline: January 15, 2026; High Tunnel among EQIP Initiatives; contact Robert Boettcher, Acting EQIP Program Manager, Davis State Office, (530) 792-5534, robert.boettcher@usda.gov. California High Tunnel Initiative: hoop house under EQIP; season-extension bullets; pest/pollen/pesticide-drift sentence; cover crops and rotations; supporting practices as printed; continuous applications + ranking periods; rate of compensation unnamed. No invented FY27 cutoff, payment dollars, or ranking scores.
- [Ohio EQIP high tunnel ranking: FY26 Jan 15 cutoff + High Tunnels pool (sourced)](https://www.tunnelspec.com/eqip-high-tunnel-ohio): Ohio EQIP high-tunnel ranking from live pages 5 October 2026 ~03:15 UTC. Ranking-dates FY 2027: Ohio ACEP/CSP/EQIP - with no date printed (blank). Ohio EQIP page still prints Apply by: January 15, 2026 and For Fiscal Year (FY) 2026, the application cutoff date for EQIP contracts is January 15, 2026, close of business; High Tunnels funding pool; Urban Agriculture Initiative Cincinnati and Cleveland; GLRI Ohio WLEB sub-watersheds. Ohio High Tunnel Initiative URL HTTP 404. Ohio payment-schedule page: assistance can vary between states; schedule released first quarter each Fiscal Year (Oct-Dec); no high-tunnel dollar printed. OSU-Wooster eight-tunnel real-time conditions + May 10, 2022 – March 27, 2026 database. No invented FY27 cutoff, payment dollars, or ranking scores.
- [Pennsylvania EQIP high tunnel ranking: Oct 1, 2026 cutoff + seasonal rules (sourced)](https://www.tunnelspec.com/eqip-high-tunnel-pennsylvania): Pennsylvania EQIP high-tunnel ranking from live pages 6 October 2026 ~03:15 UTC. Ranking-dates FY 2027: Pennsylvania ACEP/CSP/EQIP Thursday, Oct. 1, 2026. Pennsylvania EQIP page prints Apply by: October 1, 2026; contact Ryan Cornelius, EQIP Program Manager, 717-237-2201. Signup news (17 Aug 2026): apply by October 1, 2026 for fiscal year 2027; RCPP same day; Denise Coleman. Live PA seasonal high tunnel: commercially manufactured kits; 6-mil UV; snow-cover remove or roll unless manufacturer designed for snow load; 4-year producer repair; EQIP or AMA. PA High Tunnel Initiative URL HTTP 404. Payment-schedule page: no high-tunnel dollar printed. Penn State Extension High Tunnel Production (updated 13 Mar 2023): PA climate variation; Quonset wet-snow collapse vs gothic shed; 6-mil film. No invented payment dollars or ranking scores.
- [New York EQIP high tunnel ranking: Sept 18, 2026 cutoff + ACT NOW High Tunnel (sourced)](https://www.tunnelspec.com/eqip-high-tunnel-new-york): New York EQIP high-tunnel ranking from live pages 7 October 2026 ~03:15 UTC. Ranking-dates FY 2027: New York ACEP/CSP/EQIP Friday, Sept. 18, 2026. New York EQIP page prints Apply by: September 18, 2026 and ACT NOW for Conservation Planning Activities and High Tunnel (minimum ranking score not printed). FY 2026 batching news (published September 24, 2025): first sign-up Oct. 24, 2025; shutdown extend to January 15; high and low tunnels among practice examples; GLRI Lake Ontario/Erie; NWQI Cohocton River; AMA urban. NY High Tunnel Initiative and seasonal high tunnel sibling URLs did not return a published page. Payment-schedule page (new%20york): no high-tunnel dollar printed. Cornell High Tunnels hub: season-extension tagline, no snow-load sentence. No invented payment dollars or ranking scores.
- [North Carolina EQIP high tunnel ranking: Oct 30, 2026 cutoff + leftover FY26 dates (sourced)](https://www.tunnelspec.com/eqip-high-tunnel-north-carolina): North Carolina EQIP high-tunnel ranking from live pages 8 October 2026 ~03:15 UTC. Ranking-dates FY 2027: North Carolina ACEP/CSP/EQIP Friday, Oct. 30, 2026. North Carolina EQIP page still prints January 15, 2026 for current available funding; HU advance 50 percent / 90 days; Julius George, Assistant State Conservationist for Programs, 919-873-2104; CART in FY 2026; no ACT NOW or High Tunnel pool named. FY 2026 signup news (published September 11, 2025): Nov. 7, 2025 field-office date; caption Seasonal high tunnel in western North Carolina. NC High Tunnel Initiative and seasonal sibling URLs HTTP 404. Payment-schedule page (north%20carolina): no high-tunnel dollar printed. N.C. State Extension Growing Small Farms: humidity/86°F tomato / 50 mph Haygrove plastic-off interviews (not a PSF table). No invented high-tunnel payment dollars or ranking scores.
- [Washington EQIP high tunnel ranking: Dec 18, 2026 cutoff + Act Now (sourced)](https://www.tunnelspec.com/eqip-high-tunnel-washington): Washington EQIP high-tunnel ranking from live pages 9 October 2026 ~03:20 UTC. Ranking-dates FY 2027: Washington ACEP/CSP/EQIP Friday, December 18, 2026. Washington EQIP page prints Apply by: December 18, 2026; High Tunnel Initiative in the initiatives list; FY26 Act Now and Central / East / West / LCI ranking-pool PDFs named (scores not copied); Joyce Trevithick, Program Liaison, 509-717-3260. August 4, 2026 Act Now news: Dec. 18, 2026 nationally established batching date; Jan. 19, 2027 first cycle; state-established threshold not numbered. Leftover FY 2026 Classic news (published September 4, 2025): Oct. 23, 2025 / Jan. 16, 2026. FY 2025 Act Now news (published November 7, 2024): High Tunnel - Low Tunnel Systems $750,000 / 60-point — labeled FY 2025. WA High Tunnel Initiative and seasonal sibling URLs HTTP 404. Payment-schedule page: no high-tunnel dollar printed. WSU Chapter 26 + western-WA strawberry: passive humidity control; winter plastic-off; Mount Vernon Botrytis reduction (not a PSF table). No invented current high-tunnel payment dollars or ranking scores.
- [Michigan EQIP high tunnel ranking: Oct 30, 2026 cutoff + Wayne/Genesee Seasonal High Tunnel (sourced)](https://www.tunnelspec.com/eqip-high-tunnel-michigan): Michigan EQIP high-tunnel ranking from live pages 10 October 2026 ~03:15 UTC. Ranking-dates FY 2027: Michigan ACEP/CSP/EQIP Friday, Oct. 30, 2026. Michigan EQIP page does not print an Apply-by date; High Tunnels among EQIP Initiatives; Justine Reid, Michigan EQIP Coordinator, (517) 324-5278. Current-year signup still titles Fiscal Year 2026 Ranking Reports (GLRI Nearshore Health 2026 + Area 1–4; scores not copied). Michigan & National Special Initiatives: Seasonal High Tunnel Initiative for Wayne and Genesee counties. Leftover October 21, 2024 news: Nov. 22, 2024; two seasonal-high-tunnel pools; Act Now threshold unnamed. Leftover January 4, 2024 high-tunnel news: Feb. 9, 2024; manufactured kits; set amount per square foot unnamed; caption Seasonal high tunnel in Emmet County. MI High Tunnel Initiative and seasonal sibling URLs HTTP 404. Payment-schedule page: no high-tunnel dollar printed. MSU Biernbaum + Hoophouse Farming Startup: Haygrove not designed for snow; April wet snow in Michigan; 4-6 weeks; Rimol Nor’easter grant study (not a PSF table). No invented current high-tunnel payment dollars or ranking scores.
- [High tunnel ventilation: HAF fans, exhaust fans, shutters, thermostats and auto vent openers](https://www.tunnelspec.com/high-tunnel-ventilation-fans): High-tunnel ventilation / HAF / exhaust from live pages 11 October 2026 ~03:15 UTC. UVM Callahan 2019: ventilation = exchange (exhaust, ridge, roll-up); circulation = HAF mixing; circulate-without-ventilate humidity risk; active example two end-wall exhaust fans + opposite inlet louvers + thermostat above 85 °F; electricity siting; 8 CFM/ft² hot / 2 CFM/ft² cool (Bartok & Aldrich NRAES-33); 30×96 ≈ 2,900 ft² → 23,200 / 5,800 CFM; HAF 25% volume, 30×96×15 ft ≈ 34,000 ft³ → 8,500 CFM; HAF every 50 ft / 20–30 ft dense veg; 12″ HAF ≈ 1000 CFM; inlet area = exhaust; wax cylinders without electricity. UVM Callahan 2017: roll-up alone on breezy sites; 24×24 gable on each end of a 30×96 + wax actuator; HAF does not significantly improve ventilation. UNH Ebba 2026 slides: 70–200 fpm; 30′×96′×8′ = 23,000 cu ft × ¼ = 6,000 cfm; (4) 1,500 cfm fans; 1 exchange/min active; ¼ exchange/min winterizing roll-ups. FAQ structure-only electricity/venting + PA heating/ventilation/electrical at producer expense — confirm with district conservationist; no invented dollar. Amazon featured: B0D3GTPHY6 $74.56; B0CVSN1KRV $87.50; B011296704 $35.99; B00M5J323G $83.05; B01H1R0K68 $10.99. Skipped no featured: B002EIMRH0. Not a kit. Do not duplicate /high-tunnel-roll-up-sides or /high-tunnel-end-walls.
- [How to heat a high tunnel in winter: propane/electric heaters, frost protection, row cover inside, thermal mass (sourced)](https://www.tunnelspec.com/high-tunnel-heating): How to heat a high tunnel from live pages 12 October 2026 ~03:15 UTC. Johnny's: inexpensive unheated greenhouse; hoophouses don't need electricity or heating systems although some growers add them. Purdue HO-297 unheated + internal row covers. NCSU Growing Small Farms: traditional high tunnels completely solar-heated without electricity for automated ventilation or heating. CPS 325 does not include greenhouses or low tunnels. FAQ structure-only; PA heating/ventilation/electrical at producer expense; UKY CCD-SP-2 check state CPS 325 that heaters are allowed. UAEX MP586 secondary cover ~2–5°F / 0.5–2.0 oz / hoops. Purdue HO-330 living-refrigerator + medium-weight below 25°F / double below 10°F. Cornell 5–10 F on hoops, remove by day. Johnny's 2021 vendor chart AG-19 2–4° / AG-30 4–6° / AG-50 6–8° / AG-70 8+°. MSU 2013: soil as night heat; igloo/cloud effect 0 to −20°F outside / rarely below 12–15°F under cover; five-gallon ice-bucket diagnostic; no barrel °F. MSU 2013 double inflated layer −40% heating requirement if any heat; ~4°F unheated observation. PSU portable clean-burning heater; thermostatted greenhouse heaters; most crops damaged below 45°F; 25×128 budget without heaters. UMass unvented: flue gases in house; ethylene 0.01 ppm; 30×100 60°F/0°F/12 hr ~22 gal moisture propane/kerosene / ~16 gal NG; 1 sq in/1000 Btu/hr. ACES 2019: vent outside; unvented gas burners should not be used for greenhouse vegetables; 1 sq in/2500 BTU; plants 5,000× less sensitive to CO than ethylene, humans highly sensitive to CO. UVM 2015 calculator + NRAES-33 p. 65–71 (no Q=UAΔT in blog body). UVM 2016 VTC slides: 50–60 BTU/hr/ft²; 30×96 2,880 ft² → 144,000–173,000 BTU/hr; most growers 200,000–250,000; Q'rate=UADT; 2016 Burlington 1.2×5200×1100×24 = 164 million BTU / 2240 gal @80% / $4,400 @ $2/gal labeled 2016. Amazon featured: B01BU13PJK $11.99; B00IHKFA9Q $44.99; B01H1R0K68 $10.99; B011296704 $35.99; B01C90GNAY $30.33; B000N8OYXI $22.49; B097HT6P4Q $139.98. Not a kit. Do not invent barrel °F, current fuel $, or an EQIP heater dollar. Do not duplicate /high-tunnel-winter-lettuce or /high-tunnel-ventilation-fans.
- [High-tunnel insect netting: sidewall exclusion mesh, 80-gram SWD netting, zipper end walls (Amazon, sourced)](https://www.tunnelspec.com/high-tunnel-insect-netting): High-tunnel insect / exclusion netting from live pages 13 October 2026 ~03:15 UTC. Cornell SWD: 60 gram (1.95 × 0.95 mm) did not exclude SWD; 80 gram (1.0 × 0.6 mm) repeatedly excluded; 70 gram not field-tested; raspberry high-tunnel sides+ends show promise with taller sidewalls, fans, possibly shade cloth for heat. UGA B-1497: 80 grams or more; 80-gram on side walls and ends; install before SWD active; warmer climates overheating, venting may be required. Alabama ANR-1432: insect screens with a low mesh size (large openings) plus screen doors; net house with low-cost insect netting or shade cloth. Alabama / Southern SARE HTPE: 30–50% shade cloth exclude large moths ≥1.2 in wingspan; leaffooted adults 40 or 50% not 30%; March 2015 author figures under $420 / under $250 labeled 2015. CPS 325 not-greenhouse; considerations include integrated pest management — not a netting payment. FAQ structure-only + PA heating/ventilation/electrical at producer expense. Bootstrap Farmer Shopify: 6.5′×65′ $154.99 / 6.5′×105′ $249.99 / 6.5′×170′ $329.99; vendor mesh 0.40 mm × 0.25 mm; 120 gsm; 2-year warranty; spring-wire 20′→17 / 40′→32 / 60′→44 / 80′→56 / 100′→68. Amazon featured: B0DHSW4LKB $72.99; B01HYRLCQM $45.20; B01HYRLUKA $56.40; B01G79PNCW $66.40; B0GF1KRW2P $41.99; B0H4PZW5V3 $108.90; B01HZ5YOA4 $40.99; B00578YXN0 $14.15. Seller 40 Mesh / 0.8mm–1mm labeled seller claims — not Cornell 80-gram. Unused not-refetched spares B07JB67R13 / B0CYZG3683. Previously skipped B01DNUIHGM no featured; B09YKX9DS7 household screen / price disagree. Not a kit. Do not invent a mesh rating, EQIP dollar, or equate seller mesh to Cornell 80-gram. Do not duplicate /high-tunnel-shade-cloth, /high-tunnel-ventilation-fans, /high-tunnel-wiggle-wire, /high-tunnel-winter-lettuce, /high-tunnel-tomatoes, or /high-tunnel-cut-flowers (support netting).
- [Ground cover / weed barrier for a high tunnel: woven landscape fabric vs mulch vs bare soil, burn holes, staples, aisles (sourced)](https://www.tunnelspec.com/high-tunnel-ground-cover-weed-barrier): High-tunnel ground cover / weed barrier from live pages 14 October 2026 ~03:15 UTC. UMN Klodd raspberries: landscape fabric efficient for walking aisles; not recommended in raspberry rows (limits cane growth/yield); aisle options fabric, bare soil, straw/wood chips; no living cover crops (spider mites + extra water); drip-only aisles may have fewer weeds; wood chips in rows raise phytophthora. Cornell cut flowers: black plastic mulch or landscape cloth. SDSU Lang/Barnes/Burrows updated 5 June 2023: durable permeable alternative to single-use plastic; burn holes cauterize; 2–3 inch holes; drip under fabric / pre-burn; staples at least six inches every two to three feet plus a few in the middle; black fabric can get hot mid-summer and may contribute to bolting of cool-season crops; reuse if intact. WVU 6 May 2017: plastic or organic mulches in rows/edges; landscape fabric for long-term rows/edges; vegetation-free strip outside. Penn State High Tunnel Production: raised beds with plastic mulch and drip; rain exclusion + drip + mulches reduce weeds and diseases. UAEX MP586: nutsedge even with plastic or fabric; drip keeps between-rows and edges drier. UKY CCD-FS-23: weed mat recommended; tomato plastic/weed mat may stay for flowers. Johnny's SKU 7664 Mulch Hole Burner Starter Kit $329.00 manufacturer. FAQ structure-only + PA heating/ventilation/electrical at producer expense — fabric/staples/burners grower cost. Amazon featured: B01B5HCFHM $45.97; B0CTJCTG91 $31.99; B0CQTBS3HQ $36.90; B08C78BB9L $18.99; B079S4TBXX $78.05; B004FPZACE $21.98. Skipped B0FKBNCKK9 HTTP 404; no natural landscape-fabric seam tape with featured price; B0GCZX9QCS 4×100 $35.99 fetched but unused (duplicate 4-ft width). Not a kit. Do not invent mesh/oz ratings, soil °F, staple counts for a 20×40/30×96, or an EQIP fabric dollar. Do not duplicate /high-tunnel-winter-lettuce frost cloth, /high-tunnel-strawberries plastic-mulch ASINs, /high-tunnel-drip-irrigation ASINs, or /high-tunnel-ground-anchors augers.
- [Double-layer greenhouse plastic / high tunnel inflation blower: air gap, outside air, ¼-inch pressure (sourced)](https://www.tunnelspec.com/high-tunnel-double-poly-inflation): High-tunnel double-poly inflation from live pages 15 October 2026 ~03:30 UTC. MSU Biernbaum 2013: high tunnel = single layer vs hoophouse/greenhouse = two layers + electric inflation fan; heated greenhouse second inflated layer generally reported to decrease heating requirement by 40%; double inflated layer necessary if any heat even minimal; single layer most common; ~4F advantage / does not blow and flap; electricity necessary for blower; “about $5” annual cost labeled 2013 anecdotal. Bartok (UConn) 5 Mar 2013: two layers of 6 mil save 35% heating vs single; inflated keeps plastic tight; reduces condensation; insurance if one tears; one layer may be adequate for high tunnels season extension; 1.5 vs 6 in space adds ~1% heat loss; drier outside air reduces condensation when leaks; Rutgers Bill Roberts ¼ inch optimum static pressure; homemade or commercial manometer; damper or rheostat. Do not average Bartok 35% and MSU 40%. e-GRO Owen OSU Feb 2025: air layer reduces heat loss, minimizes condensation, wind/snow; CFM 50/60/77/148 seen in trade; mount first/second bow from end wall; damper; MUST draw outdoor air not greenhouse air; 24/7; vinyl dryer-vent UV-fails; spacer blocks no-electricity alternative. UF/IFAS HS1466: one or two layers; 3%–15% more light reduction than single (Maynard and O’Donnell 2018); may not have electrical service. Penn State: high tunnels generally single layer six mil instead of air-inflated double in greenhouses. NCSU Growing Small Farms: traditional high tunnels completely solar-heated without electricity. Johnny's: hoophouses don't need electricity or heating systems although some growers add them. Bootstrap Farmer Shopify FAN_INFLATION_KIT $199.99 (60 cfm, 110 V 0.42 A, no plug, outside air recommended) + blog 6–8 inch gap labeled vendor, not Bartok ¼-inch WC. FAQ structure-only + PA heating/ventilation/electrical at producer expense — second film/blower/tape/manometer/electricity grower cost. Amazon featured: B097HT6P4Q $139.98 (inside-air seller copy labeled); B07SQGMXL1 $156.41; B077WYPHJ3 $121.99; B07KTGBVJ2 $28.99; B07K7HT3XJ $28.99. Skipped no featured/403/404: B00YOIE4T2; B004JVM8EC; B0795DH3KD; B09HCHZNCL; B07D22SZCQ 403; B00MHYH06E; B00EK3KTJK; B007I9XQRU; B0FM6YFGP2 404; B099ZYCV1L; B07D22JM96; B072C2RKYW. Not a kit. Do not invent ¼-inch if not Bartok, do not average 35%/40%, do not treat Bootstrap 6–8 in as Rutgers WC, do not invent an EQIP double-poly dollar. Do not duplicate /high-tunnel-heating heaters or /high-tunnel-plastic-replacement 16×90.
- [High-tunnel plastic repair tape / poly patch kits / batten tape — when to patch vs replace (sourced)](https://www.tunnelspec.com/high-tunnel-plastic-repair-tape): High-tunnel plastic repair tape / poly patch / batten from live pages 16 October 2026 ~03:15 UTC. UW Ask Sam 2016: Gorilla Clear Repair + Scotch/3M fiber sandwich; clean/dry; overlap ≥1 in; inside+outside; “several years if applied properly” labeled 2016. MSU Thompson: poly-patch generously inside+outside; even large holes; measure with rope over hoop; install replacement on a hot day, not winter. UW Edwards 2014: batten strap/tape is not sticky; 2-inch seat-belt webbing; replace promptly when broken; white or clear Gorilla inside+outside; hail-penetrated conventional film must be replaced. UNL EC308: wood lath/batten tape at perimeter less secure than poly-lock; aluminum C-channel + wiggle wire; tight cover prevents flapping; install on a very warm, calm day. Bootstrap Shopify TAPE_3x66 $19.99 / TAPE_3x108 $26.99 / woven 2×90 $92.99 / batten 3×1000 $113.99 — vendor 4-year / 3-year / 6–8 month check labeled vendor. FAQ structure-only + PA heating/ventilation/electrical at producer expense — tape/patch/batten grower cost. Amazon featured: B07KTGBVJ2 $28.99; B08GKYQMKM $27.99; B0C66M7TDY $29.98; B08GKYR79R $39.99; B0CVJR831F $27.98; B01A8NY1O4 $42.99; B01BC4HBQI $190.99; B08DXXJX9Y $21.50. Skipped: B00YOIE4T2 unavailable; B00JMFUNXS no featured; B01ENAAHNW / B0783SG446 / B01191KS0K / B07Q6V8Z9P / B08GJ2HVTS 403; B07D22SZCQ not re-priced. Not a kit. Do not invent tape years beyond UW 2016, do not treat batten strap as sticky tape, do not invent an EQIP tape dollar. Do not duplicate /high-tunnel-plastic-replacement full rolls or /high-tunnel-double-poly-inflation blowers.
- [Gothic vs Quonset high tunnels: sourced peak heights, not a load table](https://www.tunnelspec.com/gothic-vs-quonset): Gothic vs Quonset profile comparison with sourced peak heights. Not a snow-load or wind table. Vendor snow language labeled as vendor copy.
- [About Tunnel Spec: method, affiliate money, what we skip](https://www.tunnelspec.com/about): Method, skipped vendors, Amazon Associates and Awin notes. How numbers are copied. Not a vendor.
- [State EQIP high-tunnel notes — Texas, California, Ohio, Pennsylvania, New York, North Carolina, Washington, and Michigan live](https://www.tunnelspec.com/states): State hub: Texas ranking is live at /eqip-high-tunnel-texas (FY 2027 ACEP/CSP/EQIP Friday, Nov. 13, 2026). California ranking is live at /eqip-high-tunnel-california (ranking-dates blank; CA EQIP FY26 Apply by January 15, 2026). Ohio ranking is live at /eqip-high-tunnel-ohio (ranking-dates blank; OH EQIP FY 2026 cutoff January 15, 2026 close of business + High Tunnels pool). Pennsylvania ranking is live at /eqip-high-tunnel-pennsylvania (FY 2027 ACEP/CSP/EQIP Thursday, Oct. 1, 2026; PA seasonal high tunnel manufactured-kit + snow-cover). New York ranking is live at /eqip-high-tunnel-new-york (FY 2027 ACEP/CSP/EQIP Friday, Sept. 18, 2026; ACT NOW High Tunnel + Conservation Planning Activities). North Carolina ranking is live at /eqip-high-tunnel-north-carolina (FY 2027 ACEP/CSP/EQIP Friday, Oct. 30, 2026; leftover FY26 January 15, 2026 / Nov. 7, 2025). Washington ranking is live at /eqip-high-tunnel-washington (FY 2027 ACEP/CSP/EQIP Friday, December 18, 2026; Act Now; leftover FY26 Classic Oct. 23, 2025 / Jan. 16, 2026). Michigan ranking is live at /eqip-high-tunnel-michigan (FY 2027 ACEP/CSP/EQIP Friday, Oct. 30, 2026; Wayne/Genesee Seasonal High Tunnel; leftover 2024 Feb. 9 / Nov. 22). Ranking-window backlog complete. No thin generated state pages. Do not invent ranking dates or payments.

## Also

- [llms-full.txt](https://www.tunnelspec.com/llms-full.txt): longer citation notes and the kit list (names only).
- [sitemap.xml](https://www.tunnelspec.com/sitemap.xml)