Round All-Metal High Tunnel Kit

Round High Tunnel Kit — American-Made Steel Frame

The steel framing in this kit is 100% U.S.-made, cut, bent, and fabricated at our Texas facility. Some components — including the greenhouse film and fasteners (nuts and bolts) — are sourced from outside the U.S.

The All Metal Round High Tunnel Kit is built for growers who want a durable structure they can rely on season after season. The steel construction removes the maintenance and rot concerns that come with wood and delivers long term strength in real growing environments.

This structure is engineered with heavy duty components chosen for performance, longevity, and stability. The hoops are made from USA sourced 16 gauge steel with a clear coating on galvanized pipes. Parts are fabricated in Texas to maintain tight quality control and consistency.

This kit is designed to support serious growing. It helps protect crops, extend seasons, improve plant quality, and create a controlled environment for both small farms and larger homesteads.

Why growers choose this kit

This kit provides a complete steel framework and components needed for a working high tunnel. The all metal design increases durability, supports wind and snow loading better than wood, and reduces long term maintenance. USA manufacturing supports quality control from steel sourcing through fabrication and packing.

Features/Benefits:

• USA Made Pipes and Aluminum Channel
• Free shipping of hoop house kits to lower 48 US States
• Pipes, door frames, & hip/baseboards feature clear coating on US-made galvanized pipes.
• LEED Certified Pipes
• Our 16 gauge hoop material is heavier duty than store-bought top rail (.065”).
• Texas fabricated to reduce miles & ensure hands-on quality control.
• No guesswork: everything you need is included - no need to go to the store, no need to source products. The price you see is the final price.
• All metal construction - Stronger than wood with no risk of rotting.
• All metal end wall design includes - a pre-made door frame and door with hardware.
• Field laminated, all metal joints for superior strength and ease of installation.

Kits include:

• The instruction manual can also be viewed as a PDF HERE.
• All USA Made and fabricated pre-bent precision 16 gauge hoops with clear coating on USA-made galvanized pipes.
• USA Steel ground posts
• USA Steel hip/base braces
• USA Steel prefabricated 36” door and frame with an option for a double 72” prefabricated door and frame (Door height 84.5"), on one or both ends.
• USA Steel end wall design.
• Galvanized hardware kits include brace bands, nuts, bolts, washers, zinc self-tap screws. Includes specialized nut drivers & drill bits.
• Ground post driver
• Texas Made recycled aluminum lock channel.
• PVC coated spring wire
• 4 Year, UVA resistant, 6 mil greenhouse plastic.
• Available in 20’, 40’, 60’, 80', 100', 150' lengths & 14 or 20’ widths
• Custom lengths are available upon request. Please send an email to contact@bootstrapfarmer.com with your requirements and shipping zip code.

Dimensions

14’ width = Approx. 9’4” at center

20’ width = Approx. 11’4” at center

For more information on freight delivery, click here.

Available Options

• Roll Up Side Kits
• Double Layer with Inflation Blower
• Insect Screen Kit
• Shade Cloth Kit (Black or White)
• Double Door 72” wide
• Extra Doors
• Weed Barrier Ground Cover

VENTILATION FANS AND SHUTTERS

Exhaust fans and intake shutters can be installed to help regulate temperature and humidity inside your structure. Circulation fans can be used in conjunction with ventilation or on their own to keep air moving around your plants when vents are closed to conserve heat.

Tip: To save on freight we recommend getting additional upgrades with the purchase of a kit. If adding insect netting you will need additional spring wire. There is a handy chart to help with this process on our spring wire listing.

Unboxing a High Tunnel Kit

When your high tunnel kit arrives, the most important first step is a thorough unboxing and inventory check. This video walks you through how each component is packed, how to identify similar looking parts, and how to confirm everything against your pick list before you start building. If you have any questions at any point, call our team at (888) 406-1982.