Outsunny 20x10x7 ft White Walk-in Alternatives: 6 Similar Picks Compared
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You are looking for outsunny 20x10x7 ft white walk in alternatives because the original model offers specific volume and reinforcement that may not fit every garden layout. The Outsunny unit provides a 20 x 10 x 7 ft footprint with a 7 ft height and a galvanized steel frame. It uses a two-layer PE cover with a reinforcement grid and includes six mesh-protected windows for ventilation. This large, permanent structure suits gardeners who prioritize maximum interior space and structural stability for extended growing seasons.
However, you might need a different size, material, or assembly method. Some buyers prefer portable options or compact footprints that fit smaller yards. Others may want cedar construction or polycarbonate panels instead of plastic covers. We selected 6 similar picks because their published specifications overlap with the original product. Each alternative shares key traits like walk-in access or outdoor durability. You can compare these options to find a greenhouse that matches your specific space constraints and material preferences without sacrificing essential growing features.
Our top pick: Outsunny 20x10x7 ft White Walk-in Greenhouse.
How each alternative compares
CROWN SHADES 12x8 Pop Up Walk-in Greenhouse
The Crown Shades 12x8 Pop-Up Greenhouse is much smaller than the Outsunny unit, measuring 12 by 8 feet. It sacrifices the large 20 x 10 x 7 ft footprint for portability and quick setup. You give up the 7 ft height and 67.1-pound stability for a lighter, temporary structure. This model is best for gardeners who need a seasonal growing space that can be moved or stored easily. It does not offer the same structural reinforcement or UV protection levels as the heavier steel-framed Outsunny. If you prioritize flexibility over maximum interior volume, this compact option fits your needs.
VEVOR 19.4x9.7 ft White Tunnel Greenhouse
The VEVOR 19.4x9.7 ft Tunnel Greenhouse is nearly as large as the Outsunny, with a length of 236 inches and a height of 78.7 inches. It weighs slightly more at 70.6 pounds and uses a steel frame similar to the original. You gain a slightly different tunnel shape and robust ventilation options. The VEVOR model is ideal for serious gardeners needing commercial-grade space. It gives up the specific 7 ft peak height of the Outsunny but offers comparable durability. If you want a large, stable growing area with strong airflow, this alternative matches the Outsunny’s volume while providing a different structural profile.
KING BIRD 15x6.6x6.6 ft White Greenhouse
The KING BIRD 15x6.6x6.6 ft Greenhouse is significantly smaller than the Outsunny, with a footprint of 154 by 79.2 inches. It weighs only 57.7 pounds, making it lighter and less stable in high winds. You give up the 20 x 10 x 7 ft volume and 115-inch height for a more manageable size. This model focuses on UV protection and ventilation rather than maximum square footage. It is best for medium gardens where space is limited but strong frame strength is still required. If you prioritize climate control and wind resistance over large interior space, this compact unit is a practical choice.
Backyard Discovery Bellerose 9x6 Cedar Greenhouse
The Backyard Discovery Bellerose 9x6 Cedar Greenhouse is made of cedar wood and polycarbonate, unlike the steel and PE cover of the Outsunny. It weighs 798 pounds, offering permanent stability that the 67.1-pound Outsunny cannot match. You give up the 20 x 10 x 7 ft size for a much smaller 9x6 ft footprint. This model includes built-in power and shelves, features the Outsunny lacks. It is best for gardeners who want durable wood construction and integrated utilities. If you value long-term durability and power access over maximum growing volume, this cedar option is a solid alternative.
Backyard Discovery Willow 9x6 Cedar Greenhouse
The Backyard Discovery Willow 9x6 Cedar Greenhouse is also constructed from cedar and polycarbonate, weighing 571 pounds. It is much smaller than the Outsunny, with a length of 114 inches and height of 94 inches. You give up the large 20 x 10 x 7 ft space for a compact footprint with built-in power. This model offers good insulation and ventilation for its size. It is ideal for those prioritizing cedar durability and power options over maximum interior volume. If you need a permanent, high-quality structure in a smaller yard, this unit provides robust materials and utility integration that the lightweight Outsunny does not.
WKM 4x6 FT Walk-in Polycarbonate Greenhouse
The WKM 4x6 ft Black Polycarbonate Greenhouse is tiny compared to the Outsunny, measuring only 44.6 by 66.9 inches. It weighs 48.8 pounds and uses black polycarbonate panels instead of white PE cover. You give up the 20 x 10 x 7 ft volume and white color for a compact, UV-protective unit. This model is best for small yards where space is limited. It offers adjustable vents and strong UV protection in a small footprint. If you want a durable, space-saving greenhouse with excellent light control, this black polycarbonate option is a practical choice for tight spaces.
Quick picks
Our 7 picks
Outsunny 20x10x7 ft White Walk-in Greenhouse
Best for: Large outdoor growing spaces
- Frame Material
- galvanized steel
- Panel Material
- 140 GSM PE
- Size
- 20 x 10 x 7 ft
- Height
- 7 ft
- Door Type
- zippered door
- Ventilation
- mesh-protected windows
View on Amazon: Outsunny 20x10x7 ft White Walk-in Greenhouse Affiliate link
This Outsunny greenhouse offers a spacious 20 by 10 by 7 foot footprint for serious gardening. It features a galvanized steel frame with reinforcing tubes for durability. The white cover allows 85% of sunlight through while protecting plants from UV rays. Six mesh-protected windows and a zippered door provide essential ventilation. You get ample height for tall plants and easy access to your growing space.
Pros
- Large 20 by 10 by 7 ft interior footprint
- Galvanized steel frame with seven rows of reinforcing tubes
- White cover allows 85% sunlight transmission
- Six mesh-protected windows for ventilation
- 7 ft height accommodates tall plants
Cons
- Cover requires burying edges for stability
- No remote or app control listed
- Heavy at 67.1 pounds
Good fit if
- You need maximum floor space for multiple plants
- You want a tall structure for vertical gardening
- You prefer a white cover for light diffusion
Skip if
- You have limited yard space
- You want a pre-assembled unit
- You need a smaller footprint
Verdict: Outsunny 20x10x7 ft Walk-in Greenhouse suits gardeners who prioritize volume and structural reinforcement. It fits those with large yards who need height and light control for extended growing seasons.
CROWN SHADES 12x8 Pop Up Walk-in Greenhouse
Best for: portable seasonal growing spaces
- Frame Material
- rust-resistant steel
- Panel Material
- PE cover
- Size
- 12X8 ft
- Height
- 102 inches
- Door Type
- roll-up zippered
- Ventilation
- mesh windows
View on Amazon: CROWN SHADES 12x8 Pop Up Walk-in Greenhouse Affiliate link
This Crown Shades 12x8 walk-in greenhouse uses a tool-free pop-up design with a CENTERLOK system for quick setup. It features a rust-resistant steel frame and an anti-aging PE cover. Mesh windows and a roll-up zippered door improve airflow. The structure includes wind ropes and stakes for stability. It offers three adjustable height levels to suit different plant sizes.
Pros
- Tool-free pop-up setup with CENTERLOK system
- Rust-resistant steel frame for durability
- Mesh windows and roll-up zippered door
- Three adjustable height levels
- Includes wind ropes and stakes
Cons
- 12x8 ft size is smaller than the 20x10 ft alternatives
- PE cover offers less insulation than polycarbonate panels
- No permanent foundation included
Good fit if
- You need a portable structure for seasonal use
- You want a tool-free assembly process
- You require adjustable height for growing stages
Skip if
- You need a large 20x10 ft footprint
- You prefer permanent wood or metal construction
- You require high thermal insulation for winter
Verdict: Crown Shades 12x8 Pop-Up Greenhouse suits gardeners who prioritize quick assembly and portability over permanent, large-scale storage. It is ideal for temporary growing spaces that need easy relocation.
VEVOR 19.4x9.7 ft White Tunnel Greenhouse
Best for: Large-scale home or small commercial gardening
- Frame Material
- galvanized steel
- Size
- 19.4x9.7 ft
- Height
- 6.5 ft
- Door Type
- zippered roll-up
- Windows
- 12
- Ventilation
- mesh windows
View on Amazon: VEVOR 19.4x9.7 ft White Tunnel Greenhouse Affiliate link
The VEVOR walk-in tunnel greenhouse offers a spacious 19.4x9.7x6.5 ft footprint with a 6.5 ft height. It features a galvanized steel frame and a 140g/m² PE cover for durability. You get 12 windows and a zipper door for ventilation. This white model suits those needing a large, stable structure for serious gardening or small commercial use.
Pros
- Galvanized steel frame for structural strength
- 12 windows and zipper door for airflow
- 140g/m² high-density PE cover resists sun and tears
- Spacious 19.4x9.7x6.5 ft interior layout
Cons
- 70.6 lb weight makes it heavy to move
- 19.4 ft length is very large for small yards
- No mention of automatic vent openers
Good fit if
- You need a large footprint for multiple plant shelves
- You want a galvanized steel frame for stability
- You require extensive ventilation via 12 windows
Skip if
- You have limited yard space for a 19.4 ft structure
- You prefer a lightweight unit for easy relocation
- You need automatic climate control features
Verdict: VEVOR 19.4x9.7x6.5 ft Walk-in Greenhouse fits buyers who prioritize a large, stable growing area with robust ventilation options. It is ideal for serious gardeners needing commercial-grade space.
KING BIRD 15x6.6x6.6 ft White Greenhouse
Best for: Medium gardens needing strong UV and wind resistance
- Frame Material
- galvanized steel
- Panel Material
- 150 GSM PE grid cover
- Size
- 15'x6.6'x6.6'
- Height
- 79.2 inches
- Door Type
- zipper screen door
- Windows
- 8
View on Amazon: KING BIRD 15x6.6x6.6 ft White Greenhouse Affiliate link
This KING BIRD greenhouse offers 15 feet of walk-in space with a 6.6-foot height. It features a galvanized steel frame and a 150g/sqm PE grid cover rated for UV Index 6. You get eight roll-up screen windows and dual zipper doors for ventilation. The structure includes stakes and ropes for stability. It suits gardeners needing a durable, medium-sized outdoor plant shelter with strong weather protection.
Pros
- Galvanized steel frame with crossbars and diagonal poles for stability
- 150g/sqm PE grid cover with UV Index 6 protection
- Eight roll-up screen windows for adjustable ventilation
- Dual zipper doors with separate PE and mesh layers
Cons
- Smaller footprint than the 20x10 ft alternatives on this list
- Shorter height than the 7 ft options available elsewhere
- 1 year warranty is shorter than typical industry standards
Good fit if
- You need a durable structure with high UV protection
- You want multiple windows for precise climate control
- You prefer a white cover that blends with outdoor decor
Skip if
- You require maximum interior height for tall equipment
- You need a larger footprint for commercial-scale growing
- You want a longer warranty period for peace of mind
Verdict: KING BIRD 15x6.6x6.6 ft White Greenhouse provides robust UV protection and ventilation for serious hobbyists. It fits buyers who prioritize frame strength and climate control over maximum square footage.
Backyard Discovery Bellerose 9x6 Cedar Greenhouse
Best for: Gardeners wanting cedar wood and built-in power
- Frame Material
- Cedar wood
- Panel Material
- 4-wall polycarbonate
- Size
- 9x6 ft
- Height
- 112 in
- Windows
- 1
- Assembly
- Pre-cut, pre-drilled, pre-stained pieces
View on Amazon: Backyard Discovery Bellerose 9x6 Cedar Greenhouse Affiliate link
This 9x6 ft cedar wood greenhouse features 4-wall polycarbonate panels for improved heat retention. It includes a temperature-activated exhaust fan, one window, and a PowerPort with outlets. The 798 lb structure withstands 3,700 lb snow loads. It offers 54 sq ft of space with shelves. You should choose this if you want durable wood construction and integrated ventilation for year-round gardening.
Pros
- Cedar wood frame with 4-wall polycarbonate panels
- Withstands 3,700 lb snow load and 100 mph winds
- Integrated temperature-activated exhaust fan
- PowerPort with 3 electrical outlets and 3 USB ports
- 5-year warranty
Cons
- 9x6 ft size is smaller than the 20x10 ft reference
- 798 lb weight requires significant floor space
- Only one window for natural air circulation
Good fit if
- You want a cedar wood structure with polycarbonate panels
- You need a 5-year warranty for peace of mind
- You want integrated electrical outlets and USB ports
Skip if
- You need a 20x10 ft footprint for large-scale growing
- You prefer a lightweight aluminum or steel frame
- You want multiple windows for maximum natural light
Verdict: Backyard Discovery Bellerose 9x6 Cedar Greenhouse fits gardeners who prioritize durable wood construction and integrated power features over maximum interior space.
Backyard Discovery Willow 9x6 Cedar Greenhouse
Best for: compact cedar greenhouses with built-in power
- Frame Material
- Cedar wood
- Panel Material
- 4-wall polycarbonate
- Size
- 9x6 ft
- Height
- 94 in
- Windows
- 1
- Ventilation
- Exhaust fan, easy-open window
View on Amazon: Backyard Discovery Willow 9x6 Cedar Greenhouse Affiliate link
This 9x6 ft cedar wood greenhouse features 4-wall polycarbonate panels for improved heat retention. It includes a temperature-activated exhaust fan and one easy-open window for ventilation. The interior offers 54 square feet of space with 13 linear feet of shelving. A built-in workstation and PowerPort with outlets and USB ports add convenience. It is designed for year-round gardening in a backyard setting.
Pros
- 5-year warranty for added peace of mind
- 4-wall polycarbonate panels improve heat retention by 30%
- Integrated temperature-activated exhaust fan for forced ventilation
- 54 square feet of interior space with 13 linear feet of shelving
- PowerPort includes 3 electrical outlets and 3 USB ports
Cons
- 9x6 ft footprint is smaller than the 20x10 ft alternatives
- 94 inch height is lower than some walk-in options
- Requires assembly of pre-cut components
Good fit if
- You need a durable cedar wood structure with strong insulation
- You want integrated electrical outlets and USB ports for tools
- You prefer forced ventilation via an exhaust fan
Skip if
- You require a large 20x10 ft footprint for extensive storage
- You need a height exceeding 94 inches for tall plants
- You want a simple pop-up structure without assembly
Verdict: Backyard Discovery Willow 9x6 Cedar Greenhouse suits gardeners who value durable cedar construction and integrated power options in a compact footprint. It is ideal for those prioritizing insulation and ventilation over maximum interior volume.
WKM 4x6 FT Walk-in Polycarbonate Greenhouse
Best for: small spaces needing UV protection
- Frame Material
- aluminum
- Panel Material
- polycarbonate
- Size
- 4x6 FT
- Height
- 77 inches
- Door Type
- lockable
- Ventilation
- adjustable roof vent
View on Amazon: WKM 4x6 FT Walk-in Polycarbonate Greenhouse Affiliate link
This WKM walk-in greenhouse offers 4x6 ft of growing space with a black finish. It features reinforced aluminum framing and polycarbonate panels that block UV rays while letting in light. The structure includes a lockable door and adjustable roof vents with five positions for airflow control. You get a slide-in panel assembly system that speeds up setup. It is a compact option for small outdoor areas.
Pros
- Black polycarbonate panels resist UV rays
- Five-position adjustable roof vents
- Lockable door with metal handle
- Slide-in panel assembly system
Cons
- 4x6 ft size is smaller than 20x10 ft alternatives
- Aluminum frame may feel less sturdy than wood
- No remote or app control for vents
Good fit if
- You need a compact 4x6 ft footprint
- You prefer a black color scheme
- You want adjustable roof ventilation
Skip if
- You require a 20x10 ft walk-in space
- You prefer wood construction
- You need a white finish
Verdict: WKM 4x6 ft Black Polycarbonate Greenhouse fits small yards where space is limited. It suits buyers who want UV protection and adjustable vents in a compact black unit.
Specifications side by side
| Spec | Outsunny 20x10x7 ft White Walk-in Greenhouse | CROWN SHADES 12x8 Pop Up Walk-in Greenhouse | VEVOR 19.4x9.7 ft White Tunnel Greenhouse | KING BIRD 15x6.6x6.6 ft White Greenhouse | Backyard Discovery Bellerose 9x6 Cedar Greenhouse | Backyard Discovery Willow 9x6 Cedar Greenhouse | WKM 4x6 FT Walk-in Polycarbonate Greenhouse |
|---|---|---|---|---|---|---|---|
| Frame Material | galvanized steel | rust-resistant steel | galvanized steel | galvanized steel | Cedar wood | Cedar wood | aluminum |
| Panel Material | 140 GSM PE | PE cover | not stated | 150 GSM PE grid cover | 4-wall polycarbonate | 4-wall polycarbonate | polycarbonate |
| Size | 20 x 10 x 7 ft | 12X8 ft | 19.4x9.7 ft | 15'x6.6'x6.6' | 9x6 ft | 9x6 ft | 4x6 FT |
| Height | 7 ft | 102 inches | 6.5 ft | 79.2 inches | 112 in | 94 in | 77 inches |
| Door Type | zippered door | roll-up zippered | zippered roll-up | zipper screen door | not stated | not stated | lockable |
| Windows | not stated | not stated | 12 | 8 | 1 | 1 | not stated |
| Ventilation | mesh-protected windows | mesh windows | mesh windows | roll-up screen windows, door nets | not stated | Exhaust fan, easy-open window | adjustable roof vent |
| Assembly | not stated | pop-up, tool-free | not stated | not stated | Pre-cut, pre-drilled, pre-stained pieces | Pre-cut, pre-drilled, pre-stained | slide-in panels |
| Warranty | not stated | not stated | not stated | 1-year | 5-year | 5-year | not stated |
| Snow Load | not stated | not stated | not stated | not stated | 3,700 lb or 30 in | 2,800 lb or 30 in | not stated |
| Material | PE Cover | PE Cover | Steel | Metal | Polycarbonate | Polycarbonate | Polycarbonate |
| Features | Windows | not stated | Windows, Zipper Doors | Windows | Windows, Shelves | Windows, Shelves | Vents, Roof Vent |
| Recommended Use | Outdoors | Garden, Backyard, Outdoors | Outdoors | Garden, Outdoors | Garden, Backyard, Outdoors | Garden, Backyard, Outdoors | Garden, Backyard, Outdoors |
| Color | White | NEW Green | White | White | White | White | Black |
| Style | Walk-in | Walk-in | Walk-in | Walk-in | Walk-in | Walk-in | Walk-in |
| Dimensions | 77 × 233 × 115 inches | 144 × 96 × 102 inches | 236 × 118 × 78.7 inches | 177 × 79.2 × 79.2 inches | 159 × 82.3 × 112 inches | 114 × 72.8 × 94 inches | 44.6 × 66.9 × 77 inches |
| Weight | 67.1 pounds | not stated | 70.6 pounds | 57.7 pounds | 798 pounds | 571 pounds | 48.8 pounds |
| Model | 845-069 | GH96 | 3×6×2m(6）W | GH1305W | 2304185 | 2304178 | WGH0406-Black |
Frequently asked questions
How does the VEVOR 19.4x9.7 ft size compare to the Outsunny 20x10x7 ft model?
The VEVOR unit is slightly narrower and shorter in height than the Outsunny option. It measures 19.4 by 9.7 by 6.5 feet, while the Outsunny model offers a 20 by 10 by 7 ft footprint. You lose about one foot of width and nearly a foot of vertical clearance. The VEVOR model weighs 70.6 pounds, which is heavier than the 67.1 pound Outsunny unit.
Is the Crown Shades 12x8 Pop Up Walk-in Greenhouse as tall as the Outsunny greenhouse?
No, it is significantly shorter. The Outsunny greenhouse provides a 115 inch height, allowing for a comfortable 7 ft standing room. The Crown Shades model is a pop-up design with a 12 by 8 ft footprint. It does not list a specific height in the specifications, but its pop-up structure typically offers less vertical space than the rigid frame of the 115 inch tall Outsunny unit.
Which alternative is best for small spaces compared to the large Outsunny greenhouse?
The WKM 4x6 ft Walk-in Polycarbonate Greenhouse is the smallest option on this list. It measures 4 by 6 feet with a height of 77 inches. This is much smaller than the Outsunny 20x10x7 ft model. The WKM unit weighs only 48.8 pounds and features a black color, making it suitable for compact yards where the large Outsunny footprint would not fit.
Do the Backyard Discovery greenhouses weigh more than the Outsunny model?
Yes, they are much heavier. The Outsunny greenhouse weighs 67.1 pounds. The Backyard Discovery Bellerose weighs 798 pounds, and the Willow model weighs 571 pounds. These cedar structures are designed for permanent installation. Their significant weight provides stability but makes them impossible to move like the lightweight, portable Outsunny unit.
What is the weight difference between the VEVOR and Outsunny greenhouses?
The VEVOR 19.4x9.7 ft model weighs 70.6 pounds. The Outsunny 20x10x7 ft unit weighs 67.1 pounds. The difference is 3.5 pounds. The VEVOR model uses a steel frame, which contributes to its slightly higher weight. Both units are relatively light for their size, but the Outsunny option is marginally lighter despite its larger dimensions.
How does the KING BIRD height compare to the Outsunny 7 ft height?
The KING BIRD greenhouse is shorter than the Outsunny model. The Outsunny unit has a height of 115 inches, which equals just under 10 feet. The KING BIRD 15x6.6x6.6 ft model has a height of 79.2 inches. This is approximately 6.6 feet. You lose nearly 3.5 feet of vertical clearance inside the KING BIRD structure compared to the taller Outsunny greenhouse.
Are there any white alternatives to the Outsunny 20x10x7 ft greenhouse?
Yes, several options match the white color. The VEVOR 19.4x9.7 ft Tunnel Greenhouse is white. The KING BIRD 15x6.6x6.6 ft model is also white. The Backyard Discovery Bellerose and Willow models are listed as white, though they feature cedar construction. The only non-white alternative on this list is the black WKM 4x6 ft greenhouse.
What is the length of the Outsunny greenhouse compared to the VEVOR model?
The Outsunny greenhouse has a length of 77 inches. The VEVOR 19.4x9.7 ft model has a length of 236 inches. The VEVOR unit is significantly longer, offering more linear growing space. The Outsunny model is wider but much shorter in length. This makes the VEVOR better for long rows of plants, while the Outsunny offers a broader, more compact footprint.