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8x12 FT Greenhouse for Outdoors, Polycarbonate Green House with Adjustable Roof Vent and Rain Gutter, Aluminum Large Walk-in Greenhouse with Quick Setup Structure for Outside Garden Backyard Patio

  • Based on 7 reviews
Condition: New
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$570.59 Why this price?

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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2026

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Availability: Only 2 left in stock, order soon!
Fulfilled by Yaxon

Arrives Saturday, Dec 6
Order within 20 hours and 22 minutes
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Color: Black - 8X11.9 FT


Size: Medium


Features

  • QUICK & EASY SETUP STRUCTURE: GARDMAX greenhouses are designed to be easy to assemble with an intuitive quick-install system and user-friendly slide-in panels, which will reduce installation time. The 4 corner posts help the greenhouse deep in soil or concrete for extra stability (For extra stability, you can bury the base feet in soil or concrete, or use our matching screws to secure the base to the board)
  • HEAVY DUTY GREENHOUSE: The GARDMAX greenhouse is constructed with heavy-duty 720g/m2 polycarbonate panels and a reinforced aluminum frame, ensure to withstand various weather conditions. Keep your plants safe and thriving in a reliable greenhouse built to last. Perfectly sized for your backyard, terrace, or garden, this greenhouse is great for casual gardeners and flower enthusiasts, providing ample space for plant preparation and growth.
  • UV PROTECTION: High-quality polycarbonate panels that have a UV coating on their surfaces, balancing light exposure humidity and temperature in the Greenhouse, can blocks harmful UV rays, provide the most suitable environment for plants growth and preventing plant sunburn.
  • BALANCED VENTILATED & DRAINABLE DESIGN: The GARDMAX Polycarbonate Greenhouse features ventilation windows and built-in gutter system. Not only can Provide continuously fresh air to your plants, but also efficient rainwater drainage and collection, by connecting a hose to gather rainwater for plant watering inside the hot house. Window vents provide continuous airflow, ensuring your plants receive fresh air at all times.
  • MULTI-FUNCTION SPACE: Perfect for a first-time or seasoned home gardener, GARDMAX Heavy-duty Greenhouses can create a warm environment and protect plants against rough weather. These backyard-friendly structures are perfect for cultivating a variety of vegetables, plants, and herbs, with ample space for gardening tasks.

Color: Black - 8X11.9 FT


Brand: Generic


Product Dimensions: 138"L x 92.4"W x 84"H


Cover Material: Polycarbonate (PC)


Frame Material: Aluminum


Number of Doors: 1


Number Of Vents: 1


Manufacturer: GARDMAX


Size: Medium


UPC: 702408678279


Indoor/Outdoor Usage: Outdoor


Special Feature: Heavy Duty


Product Dimensions: 138 x 92.4 x 84 inches


Item Weight: 110.2 pounds


Item model number: GH-8x11.9-BLK


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Dec 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • One person can build it.
I put this together by myself. It did take me several days, but I only worked on it in the evenings after work. Everything was in the box labeled great. However it is a lot of parts. Suggest putting everything in order before starting. All parts lined up perfectly.
Reviewed in the United States on September 21, 2025 by k9 k9

  • It’s Ok not impressed
Color: Black - 6X8 FT Size: Medium
Quality was ok. I ended up returning it because I found a bigger one for the same price and the quality was much better.
Reviewed in the United States on October 21, 2025 by Brian Ayers

  • Great product
Great product and great customer service
Reviewed in the United States on July 27, 2025 by bill c

  • Greenhouse defect
The edge is not even and has a hole on the 4 sides of the roof. Need to cut the side of the cover to screw unto the corner cover.
Reviewed in the United States on August 9, 2025 by Mon_Is_Kool

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