KING BIRD Premium 20x10x6.6FT Greenhouse for Outdoors, Large Walk-in Upgraded Galvanized Metal Frame, Mesh Door Screen Window…
Best for
Best walk-in
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Current price
$237.49
Updated Jun 27, 2026 · 1 min read
Sources behind this verdict
10 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, the King Bird 20x10 galvanized-steel walk-in is the go-to large hoop-tunnel pick, with its Amazon listing at 4.3 stars over roughly 1,200 ratings. Specialist r/Greenhouses posters are the most useful signal here: owners report the frame standing for two-plus years and surviving gusts up to 60mph once properly staked, and a Walmart verified buyer highlighted responsive customer service and effective end-wall venting.
What reviewers liked
- Heavy galvanized steel frame that r/Greenhouses owners report surviving multi-year use and 60mph winds when anchored
- Large 20-foot footprint praised for early-spring warmth and summer airflow with dual vents
- Walmart and quictents verified buyers cite easy-enough setup and good after-sale support
Where it falls short
- A detailed r/Greenhouses build thread describes the assembly as chaotic for first-timers
- Community consensus stresses it must be reinforced with sandbags or rebar or it will not hold in wind
- As a PE-cover tunnel it is a season extender, not an insulated winter greenhouse, per multiple posters
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Across the reviewers we read, the King Bird 20x10 galvanized-steel walk-in is the go-to large hoop-tunnel pick, with its Amazon listing at 4.3 stars over roughly 1,200 ratings. Specialist r/Greenhouses posters are the most useful signal here: owners report the frame standing for two-plus years and surviving gusts up to 60mph once properly staked, and a Walmart verified buyer highlighted responsive customer service and effective end-wall venting.
- Reinforced Frame Structure
- --KING BIRD portable plant tent is pro-designed and made of selected galvanized steel, with 3 top crossbars, 2 diagonal & 10 vertical poles at the bottom enhancing the entire structure. 24 stakes and 4 ropes are extra given to fix it on the ground firmly. The 20-foot large space is perfect for you to place abundant home vegetables, flowers plants, etc. [NEW!] 2 supporting stiffeners are added to reinforce the frame.
- UVI 6 Protected Cover
- --Our leading waterproof, UV Index 6 protected, and 150g/sqm PE grid cover protects your plants from excess rays, which doubles the service life: Compared to other greenhouse(UVI 1-3) that only lasts for 1-6 months, our KING-cover lasts for over years. The reinforced odorless PE covering material provides safe work zone. The cover fits the frame closely, enhancing warmth and wind resistance.
- Temperature & Humidity Control
- --Featured with 8 roll-up screen windows plus 2 door-netting, temperature and humidity can be well-controlled, which increases temperature promoting early spring plant growth, enhances ventilation on hot summer days, and retains warmth during the winter. It keeps plants from pouring rains, winds, and snows.
- Dual Zipper Screen Doors
- --Doors on both sides are convenient and increase the ventilation greatly. Each unique multi-function door consists of 1 PE and 1 mesh layer, and improved zippers, which enables you to keep warm by the PE door and keep out the intruders by the ventilating screen door. Double seams of the cover can prevent tearing apart. [NEW!] The zipper parts get upgraded for a longer life.
- Join the KING BIRD Garden Family Now
- --You will become part of the KING BIRD garden family. We stand behind our product and are the 1st to proudly provide you with 1 year of 24/7 continuous complimentary service. (Check [Product guides and documents] below product page or scan the Transparency Codes on Cartons to know more)
Secondly, where I live does not get any windbreak. The greenhouse survived storms for a couple years, but was definitely showing wear and tear ...
We don't have a nice photo of the greenhouse. My husband and I thought we could use this longer greenhouse house as 1. a greenhouse, ...
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“King Bird Upgraded Greenhouse Install and Review” · YouTube
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