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GrowIT® Heavy Duty Round Greenhouse, 12 ft. x 20 ft. x 8 ft.

$299.00

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Availability: 50 in stock

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Estimated delivery dates: Aug 21, 2026 - Aug 26, 2026

We process orders within 1–2 business days. Estimated delivery is 4–7 business days. Tracking information is sent by email.

We offer a 30-day return policy. Items must be unused and in their original condition.

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We work with trusted suppliers and keep our operating costs low through an online-first business model. This allows us to offer highly competitive prices while maintaining our standards for product quality and service.

The GrowIT® Heavy Duty Round Greenhouse (12 ft. x 20 ft. x 8 ft.) is a spacious walk-through greenhouse designed to provide reliable protection and optimal growing conditions for plants, vegetables, and flowers. Built with a strong steel frame and durable translucent cover, it helps extend the growing season while protecting plants from harsh weather, pests, and excessive sunlight.

This greenhouse features a heavy-duty 1-5/8-inch powder-coated steel frame that resists rust, chipping, and corrosion, ensuring long-lasting durability in outdoor environments. The structure also includes ShelterLock® stabilizers, Ratchet-Tite tensioning, and an Easy-Slide cross rail system, which help keep the frame stable and the cover securely in place.

The cover is made from ClearView® triple-layer ripstop translucent polyethylene, which is waterproof and UV-treated to allow sunlight to reach plants while protecting them from weather damage. This material improves light diffusion and creates a suitable environment for healthy plant growth.

For proper ventilation and temperature control, the greenhouse includes roll-up side panels and screened half-moon vents at both ends. These features promote airflow and help maintain stable conditions inside the greenhouse. It also has two double-zippered doors for easy access and improved air circulation.

With a total growing area of approximately 234.8 square feet, the GrowIT greenhouse offers ample space for planting beds, seed trays, or gardening equipment. The kit comes complete with anchors, tie-downs, hardware, and instructions for quick and convenient assembly.

SKU GROWITHEAVYDUTYROUND
Brand ShelterLogic
Series GrowIT®
Roof Type Round
Material Polyethylene 5.5 oz
Color Clear
Frame Color Gray
Door Type 2 Double Zippered Doors
Front and Rear
Assembly Required Yes
Rib Tubing Diameter 1.65 in.
Wall Height
Peak Height
Warranty 1 Year Limited
Water-Resistant Yes
SKU 70592
Size 12 x 20 ft.
Color Translucent
Hardware Kit Yes
Width 12 ft.
Length 20 ft.
Height 8 ft.
Total Storage Area 234.81 sq. ft.
Total Storage Volume 1408 cu. ft.
Assembled Exterior Dimensions Width 141.44 in.
Assembled Exterior Dimensions Depth 239.06 in.
Assembled Exterior Dimensions Height 96.72 in.
Assembled Interior Dimensions Width 138.14 in.
Assembled Interior Dimensions Depth 235.76 in.
Assembled Interior Dimensions Height 95.07 in.
Door Opening Width Top 40 in.
Door / Entrance Width Bottom 120 in.
Door / Entrance Height Outside 84 in.
Wall Height 58.78 in.
Peak Height 37.93 in.

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