A large white polytunnel greenhouse with a blue metal frame stands on dry brown ground under a bright blue sky, with mountains in the distance and a white dog in the foreground.

Caterpillar High Tunnel Kit

$1,099.00

Made to order · Ships in 2–3 weeks Available to order SKU: 16x20Cat

Shape

Width

Length

Trusses

Add a 2-point truss to every hoop for additional strength.

No Additional Trusses $0.00 Keep the standard Caterpillar frame configuration.

2-Point 5' Truss on Every Hoop Choose a length Adds one 2-point truss to each hoop: choose a greenhouse length.

Greenhouse Plastic

Choose the standard greenhouse covering or upgrade to heavier string-reinforced plastic.

Standard 6 mil Greenhouse Plastic Included The standard UV greenhouse covering included with the base kit.

10 mil String Reinforced Plastic Upgrade +10% of base kit This is the most heavy duty plastic on Earth! If you want the strongest cover possible for your greenhouse, it's worth every penny.

Configured Total

Base greenhouse$1,099.00

2-point trusses$0.00

10 mil string-reinforced plastic upgrade$0.00

Configured total$1,099.00

Layaway available: Choose $500 or $1,000 down on carts over $500. The 12 interest-free monthly payments are the minimum schedule—you can pay ahead or pay off the balance early at any time. We ship after the balance is paid in full.

30-Day Best-Price Guarantee

Check out with confidence. If you find the same greenhouse kit from a competitor for less within 30 days of purchase, we’ll beat their verified price by 5%.

See guarantee terms

Applies to new, commercially manufactured greenhouse kits with the same size, frame specifications, covering, included components and warranty, offered by an authorized U.S. competitor and available for purchase. Submit the competitor’s current public listing or dated written quote within 30 calendar days of your Sunbow purchase. After verification, Sunbow will adjust the product price to 5% below the competitor’s product price. Comparison excludes shipping, delivery, installation, taxes, financing, custom work, accessories, coupons, clearance or liquidation pricing, auctions, marketplaces, used products, pricing errors and typographical errors. Limit one adjustment per order. Sunbow determines eligibility and may request additional documentation.

Available installment options are provided by the store’s active financing provider.

Greenhouses Sold & Delivered

10-Year Frame Warranty

Helpful Assembly Support

Product overview

Flexible season extension for productive farms.

The Sunbow Caterpillar High Tunnel is an affordable, flexible way to protect crops and extend the growing season. Its practical 16-foot-wide footprint keeps rain off, holds warmth in and creates productive covered growing space for market gardens, organic farms and other working growers.

Choose a Rounded or Gothic hoop profile, then select a length from 20′ through 100′. Hoops are spaced every 4′, and the included standard 6 mil greenhouse plastic creates a dependable protected environment without the complexity of a permanent greenhouse structure.

Caterpillar tunnels are designed for straightforward installation and efficient crop protection. For additional frame strength, add a 2-point 5′ truss to every hoop directly in the configurator above.

Complete your greenhouse

Recommended Accessories

Three practical additions that make installation, climate control and everyday greenhouse use easier.

From $44.99

Repair Tape

Keep a roll on hand for fast repairs to greenhouse plastic. The clear tape seals small tears and punctures before they spread.

Available in 3″ × 100′ and 6″ × 100′ rolls

Shop repair tape

From $38.00

Shade Cloth

Our shade cloth comes in 30%–70% shading, with various sizes to fit any greenhouse. If you need help figuring out which shade cloth is best for you, please reach out.

You can also place your main order online and we can help you add it later.

Shop shade cloth

Weed and landscape fabric installed between greenhouse crop rows

From $79.00

Weed Barrier Fabric

Commercial-grade 3.2 oz UV-resistant landscape fabric: a chemical-free weed barrier.

Landscape fabric is a versatile and eco-friendly solution for keeping weeds at bay in your garden or landscaping. Unlike chemical-based weed killers, this fabric acts as a physical barrier, preventing sunlight from reaching the soil and inhibiting weed growth.

Explore this accessory