Choose options
Dreaming of a longer growing season, healthier crops, or more control over your garden?
Whether you're growing vegetables for your family, managing a homestead, or expanding a small farm, having the right growing environment can make a meaningful difference.
The Bootstrap Farmer Round All-Metal High Tunnel Greenhouse Kit provides a durable, professional-quality growing structure designed to help protect crops, extend growing seasons, and support productive gardening.
Built with 100% U.S.-made steel framing that's cut, bent, and fabricated in Texas, this high tunnel features heavy-duty 16-gauge steel hoops, an all-metal end wall system, and a complete set of essential components to help simplify installation.
It's a practical investment for growers who want to spend more time growing and less time maintaining their greenhouse structure.
Traditional greenhouse structures that rely heavily on wood can require ongoing maintenance, especially in environments exposed to moisture and changing temperatures.
This all-metal design eliminates the risk of wood rot in the structural framing and provides a durable alternative for long-term growing.
Heavy-duty 16-gauge galvanized steel hoops provide a strong structural foundation.
The all-metal frame eliminates the wood-rot concerns associated with traditional wooden greenhouse framing.
Create a protected environment for vegetables, flowers, seedlings, and other compatible crops.
The steel framing is manufactured in the United States and fabricated in Texas for consistent quality control.
The framing components are produced using U.S.-made steel, with fabrication performed at the manufacturer's Texas facility.
The steel hoops feature a clear coating over galvanized pipe for added corrosion protection.
The kit also includes U.S.-made steel ground posts, braces, and end wall components.
Made in the USA clarification: The steel framing is U.S.-made and Texas-fabricated. Certain components, including greenhouse film and fasteners, are sourced internationally.
The high tunnel features precision-bent 16-gauge galvanized steel hoops.
These hoops are heavier-duty than the commonly available 0.065-inch top rail referenced by the manufacturer.
The round hoop design creates an open growing area with useful overhead space for crops, irrigation equipment, and greenhouse accessories.
The manufacturer also uses field-laminated metal joints designed to provide a secure connection and simplify assembly.
One of the biggest challenges of building a greenhouse is figuring out which components to purchase separately.
This kit is designed to simplify the process by providing the main structural and covering components together.
Included components are:
Precision-bent 16-gauge steel hoops
Galvanized steel ground posts
Steel hip and base braces
All-metal end wall components
Prefabricated door and frame
Door hardware
Galvanized hardware kit
Brace bands, nuts, bolts, and washers
Zinc self-tapping screws
Specialized nut drivers and drill bits
Ground post driver
Texas-made recycled aluminum lock channel
PVC-coated spring wire
6-mil greenhouse plastic with four-year manufacturer-listed UV resistance
Installation instructions
Optional accessories and upgrades are sold separately unless specifically included in your selected configuration.
Every garden, farm, and growing operation is different.
That's why this high tunnel is available in multiple widths and lengths.
14-Foot-Wide High Tunnel
Approximate center height: 9 feet 4 inches
Suitable for smaller growing spaces and homesteads
20-Foot-Wide High Tunnel
Approximate center height: 11 feet 4 inches
Offers additional growing width and overhead space
20 feet
40 feet
60 feet
80 feet
100 feet
150 feet
Custom lengths may be available by special request.
Important: Select the correct width and length when ordering. Available combinations, prices, and freight arrangements depend on the chosen configuration.
The kit includes a prefabricated steel door and frame designed to integrate with the all-metal end wall system.
The standard door is 36 inches wide.
An optional 72-inch-wide double door is available for customers needing wider access.
The manufacturer lists a door height of approximately 84.5 inches.
Additional door configurations may be available for one or both ends of the high tunnel.
The kit includes 6-mil greenhouse plastic designed for agricultural growing environments.
The film is listed as UVA-resistant, with a four-year manufacturer rating.
The included aluminum lock channel and PVC-coated spring wire help secure the covering to the structure.
Like other greenhouse coverings, the film should be inspected and maintained regularly.
Its actual service life depends on environmental conditions, installation, and use.
Different crops and climates require different growing conditions.
Optional accessories allow you to tailor the high tunnel to your needs.
Help provide natural ventilation and additional temperature management.
An optional configuration that creates an air space between film layers to help improve insulation.
Help reduce insect entry when ventilation openings are in use.
Available in black or white options to help manage sunlight and heat.
Customize access for equipment, carts, and daily growing activities.
Help manage weeds and create cleaner working areas.
Optional fans and shutters can help manage temperature, humidity, and air circulation.
Please note: These upgrades are optional and are not included in the base kit unless selected or specifically stated.
This high tunnel is suitable for a variety of growing applications, including:
Vegetable gardening
Small-scale farming
Homestead food production
Seedling development
Flower growing
Market gardening
Season extension
Protected crop cultivation
Specialty crop production
Actual growing conditions depend on local climate, ventilation, irrigation, and crop management.
Round all-metal high tunnel greenhouse kit
U.S.-made steel framing
Fabricated in Texas
Heavy-duty 16-gauge galvanized steel hoops
Clear-coated steel components
All-metal end wall construction
Prefabricated steel door and frame
Field-laminated metal joints
Galvanized hardware included
Recycled aluminum lock channel
PVC-coated spring wire
6-mil greenhouse film included
Multiple widths and lengths available
Optional ventilation and growing accessories
Installation manual included
Manufacturer-advertised free shipping to the contiguous 48 states, subject to applicable terms
| Specification | Details |
|---|---|
| Brand | Bootstrap Farmer |
| Product Type | Round High Tunnel Greenhouse Kit |
| Frame Style | Round Hoop |
| Frame Construction | All-Metal |
| Frame Material | Galvanized Steel |
| Steel Gauge | 16 Gauge |
| Steel Origin | United States |
| Frame Fabrication | Texas, USA |
| Available Widths | 14 ft and 20 ft |
| Available Lengths | 20, 40, 60, 80, 100, 150 ft |
| 14 ft Width Center Height | Approx. 9 ft 4 in |
| 20 ft Width Center Height | Approx. 11 ft 4 in |
| Standard Door Width | 36 in |
| Optional Double Door Width | 72 in |
| Listed Door Height | 84.5 in |
| End Wall Construction | All-Metal |
| Greenhouse Film | 6 mil |
| Film UV Rating | 4 Years, Manufacturer-Listed |
| Cover Attachment | Aluminum Lock Channel and PVC-Coated Spring Wire |
| Ground Posts | U.S.-Made Steel |
| Hardware | Galvanized |
| Custom Lengths | By Request |
| Frame Origin | U.S.-Made and Texas-Fabricated |
| Other Components | May Be Internationally Sourced |
The manufacturer advertises free shipping for high tunnel kits to the lower 48 United States.
Shipping eligibility, freight handling, and delivery arrangements should be confirmed for your selected size and destination before ordering.
Larger configurations may require freight delivery and additional planning for unloading.
Please ensure that your delivery location is accessible to the appropriate freight vehicle.
The kit includes an installation manual and specialized tools intended to help simplify assembly.
Before beginning installation:
Choose a level and accessible growing location.
Review the complete installation manual.
Inventory all components upon delivery.
Confirm local permit and zoning requirements.
Prepare the ground and installation area.
Follow the manufacturer's instructions for installing ground posts, hoops, braces, end walls, and film.
Secure the greenhouse covering using the supplied channel and spring wire.
Proper installation and anchoring are essential to structural performance.
View the Official All-Metal High Tunnel Installation Manual
Watch the High Tunnel Kit Unboxing Guide
Whether you're planting your first large vegetable garden or expanding an established growing operation, the right high tunnel can make a meaningful difference.
The Round All-Metal High Tunnel Kit combines U.S.-made steel framing, thoughtful construction, and flexible sizing to help you create a growing space that works for your needs.
Grow more of what you love. Protect your crops. Make the most of every growing season.
At Home Outpost Supply, we believe your outdoor space should work for you.
Explore more products for gardening, storage, property improvement, and outdoor living.
Shop All Home Outpost Supply Products
Explore Our Product Collections
Visit Our Frequently Asked Questions
Need help comparing sizes, understanding delivery requirements, or exploring available options?
Call Home Outpost Supply at 1-888-831-9277.
Home Outpost Supply — Spaces That Work for You.
Customer installations & verified reviews
See how Home Outpost Supply customers are putting serious storage, shelter, outdoor cooking, and garage-lift solutions to work at home.
“It arrived fully assembled, and the 1,653 lb desktop capacity with solid-steel construction feels ready for serious work. The curbside liftgate made delivery smooth from start to finish.”
Homeowner install · 10ft workbench storage cabinet
“The 12 x 20 ft footprint gives us approximately 240 sq ft of room, with wide vehicle doors and a separate pedestrian entry. The weather-resistant steel exterior keeps our equipment protected.”
Homeowner install · 12 x 20 ft outdoor metal garage shed
“The black marble countertop looks sharp, the caster wheels make positioning easy, and the plug-and-play LPG setup meant we could get the kitchen ready without a complicated project.”
Homeowner install · 104 inch outdoor kitchen
“The push-button remote makes raising our storage straightforward. Getting those bins overhead reclaimed valuable garage floor space and made room for the things we use every day.”
Homeowner install · Auxx-Lift storage lift
