Outsunny vs Backyard Discovery: Greenhouses Compared by Specs
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This outsunny vs backyard discovery greenhouse comparison helps you choose the right structure for your garden. Both options are white, walk-in greenhouses designed for outdoor use. The main difference lies in their construction and scale. The Outsunny model uses a steel frame with a plastic cover, offering a large footprint. The Backyard Discovery Bellerose features a solid cedar wood frame with polycarbonate panels. You need to decide between a spacious, temporary-style shelter and a durable, permanent-looking garden room.
Key differences
| Aspect | Outsunny 20x10x7 ft White Walk-in Greenhouse | Backyard Discovery Bellerose 9x6 Cedar Greenhouse |
|---|---|---|
| Frame Material | Galvanized steel | Cedar wood |
| Panel Material | 140 GSM PE plastic | 4-wall polycarbonate |
| Size | 20 x 10 x 7 ft | 9 x 6 ft |
| Interior Space | 200 sq ft (approx) | 54 sq ft |
| Weight | 67.1 pounds | 798 pounds |
| Ventilation | Mesh-protected windows and zippered door | Temperature-activated exhaust fan and one window |
Which one should you choose?
Choose Outsunny 20x10x7 ft White Walk-in Greenhouse if
- You need a large growing area for many plants or equipment.
- You prefer a lightweight structure that is easier to move or reposition.
- You want a budget-friendly option with a simple steel and plastic design.
Choose Backyard Discovery Bellerose 9x6 Cedar Greenhouse if
- You want a durable, long-lasting structure made from natural cedar wood.
- You need better insulation for year-round gardening with polycarbonate panels.
- You want built-in shelves, a workstation, and electrical outlets for tools.
Verdict: The Outsunny greenhouse is the better choice if you need maximum floor space and a lightweight, affordable structure. The Backyard Discovery Bellerose is ideal if you prioritize durability, insulation, and built-in convenience features like shelves and power outlets. Your decision should depend on whether you value size and simplicity or long-term material quality and integrated amenities.
Comparing Greenhouse Specs Side by Side
Frame Material
The Outsunny greenhouse relies on a galvanized steel frame for its structure. This metal construction includes seven rows of reinforcing tubes, crossbars, and slant bracing tubes with a 0.94-inch diameter. The steel is chip-resistant and designed for outdoor durability. In contrast, the Backyard Discovery Bellerose uses 100% cedar wood. This natural material offers exceptional strength and provides natural resistance to decay. You get a traditional wooden aesthetic with the cedar option, while the steel frame offers a modern, industrial look that resists rust through galvanization.
Cover Panels
Panel materials differ significantly between these two models. The Outsunny unit features a two-layer 140 GSM PE plastic cover. This material includes a reinforcement grid to prevent tearing and allows 85% of sunlight to pass through while protecting plants from UV scorching. The Backyard Discovery Bellerose uses commercial-grade 4-wall polycarbonate panels for the roof and windows. These panels improve heat retention by 30% compared to standard double-wall polycarbonate. You get better insulation and durability with the polycarbonate, whereas the plastic cover is lighter and allows more direct light transmission.
Interior Size
Size is a major differentiator for your growing space. The Outsunny greenhouse offers a substantial footprint of 20 by 10 by 7 feet. This large area provides ample room for extensive planting rows and equipment storage. The Backyard Discovery Bellerose is much smaller, measuring 9 by 6 feet with an interior space of 54 square feet. While the Outsunny model is ideal for large-scale gardening or commercial use, the Bellerose fits neatly into smaller backyard spaces. You must choose based on the available square footage in your garden.
Ventilation
Airflow management varies between the two structures. The Outsunny model includes six mesh-protected windows and a zippered door to allow you to clear excess humidity and keep winged pests out. This setup relies on passive ventilation through multiple openings. The Backyard Discovery Bellerose features one easy-open window for natural circulation and includes a temperature-activated exhaust fan for forced ventilation. The fan provides automated climate control, which is useful during hot days. You get more manual control with the Outsunny windows, but the Bellerose offers automated assistance.
Built-in Features
Interior amenities differ greatly in this comparison. The Backyard Discovery Bellerose includes a built-in workstation with 13 linear feet of lower staging shelves, 6 feet of upper staging shelves, and 4 plant hooks. It also features a patented PowerPort with three electrical outlets and three USB ports, plus interior and exterior hose hookups. The Outsunny greenhouse data does not list any built-in shelving, electrical ports, or hose connections. You get a complete, organized workspace with the cedar model, while the steel greenhouse requires you to add your own storage and utilities.
Durability Specs
Weather resistance specifications are provided only for the Backyard Discovery Bellerose. It is Pro-Tect tested to withstand up to 3,700 pounds or 30 inches of snow load, and winds up to 100 mph, provided it is anchored as specified. The Outsunny data does not list specific snow load or wind speed ratings. The Outsunny manual advises removing the cover in case of heavy snow or strong wind, suggesting lower structural resilience in extreme conditions. You get verified high-load durability with the Backyard Discovery model, whereas the Outsunny requires manual intervention during severe weather.
Which Greenhouse Fits Your Garden
Growers needing large, affordable space
The Outsunny model offers 20 by 10 by 7 feet of interior space. Its galvanized steel frame weighs only 67.1 pounds. This lightweight design makes it easier to position. The 140 GSM plastic cover allows 85% of sunlight through. You get six mesh-protected windows for ventilation. This structure suits those prioritizing maximum growing area on a budget.
Users wanting built-in storage and power
The Backyard Discovery Bellerose includes 13 linear feet of lower shelves and 6 feet of upper staging. It also has 4 plant hooks. The patented PowerPort adds 3 electrical outlets and 3 USB ports. These features keep tools and devices organized and charged. You get dedicated workspace inside without needing external furniture. This setup is ideal for serious gardeners who value organization.
Buyers seeking durability and weather protection
This cedar wood greenhouse is Pro-Tect tested for 3,700 pounds of snow load. It withstands winds up to 100 mph when anchored. The 4-wall polycarbonate panels improve heat retention by 30%. Cedar wood resists decay naturally. You get a 5-year warranty for added peace of mind. This structure is built for long-term resilience in harsh weather conditions.
The products compared
Outsunny 20x10x7 ft White Walk-in Greenhouse
Best for: Large-scale seasonal plant protection
- 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 20 by 10 feet of floor space and a 7-foot peak height. It features a galvanized steel frame with reinforcing tubes and a two-layer 140 GSM PE cover that blocks UV rays while letting 85% of sunlight through. The zippered door and mesh-protected windows provide ventilation and pest control. You get a large, walk-in structure for extending your growing season.
Pros
- 20 by 10 feet of floor space
- 7-foot peak height for easy access
- Galvanized steel frame with seven rows of reinforcing tubes
- Two-layer 140 GSM PE cover with UV protection
- Mesh-protected windows and zippered door for ventilation
Cons
- Plastic cover requires removal during heavy snow or strong wind
- Assembly involves burying edges with tethers and tape
- No permanent foundation or anchoring system included
Good fit if
- You need a large 20 by 10 foot footprint for multiple plants
- You want a 7-foot height for standing and moving tools
- You prefer a lightweight structure that is easy to relocate
Skip if
- You need a permanent wooden or metal structure
- You live in an area with heavy snow loads
- You want a greenhouse with a solid base or foundation
Verdict: Outsunny 20x10 ft Walk-in Greenhouse provides ample space and a tall interior for serious gardeners who need a portable solution. It suits those prioritizing size and ventilation over permanent installation.
Backyard Discovery Bellerose 9x6 Cedar Greenhouse
Best for: Harsh weather gardening with power access
- 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
The Backyard Discovery Bellerose is a 9x6 ft cedar wood greenhouse with 4-wall polycarbonate panels. It offers 54 square feet of interior space, including shelves and hooks. The structure withstands 3,700 pounds of snow load and 100 mph winds. It features a temperature-activated exhaust fan and three electrical outlets. This kit suits gardeners needing durable, insulated growing space with integrated power and ventilation.
Pros
- 5-year warranty for peace of mind
- 4-wall polycarbonate panels improve heat retention by 30%
- Pro-Tect tested to withstand 3,700 pounds of snow load
- Integrated PowerPort with 3 outlets and 3 USB ports
- Made from durable cedar wood with natural decay resistance
Cons
- Only one easy-open window for natural ventilation
- 798 pounds weight requires strong anchoring
- No mention of automatic climate control beyond the fan
Good fit if
- You need a durable structure for harsh weather conditions
- You want integrated electrical outlets for gardening tools
- You prefer natural cedar wood construction
Skip if
- You need multiple windows for cross-ventilation
- You prefer a lighter, easier-to-assemble kit
- You require automatic temperature regulation systems
Verdict: Backyard Discovery Bellerose 9x6 Cedar Greenhouse is built for serious gardeners who need weather resistance and power access. It fits those who value cedar durability and insulation over simple ventilation.
Specifications side by side
| Spec | Outsunny 20x10x7 ft White Walk-in Greenhouse | Backyard Discovery Bellerose 9x6 Cedar Greenhouse |
|---|---|---|
| Frame Material | galvanized steel | Cedar wood |
| Panel Material | 140 GSM PE | 4-wall polycarbonate |
| Size | 20 x 10 x 7 ft | 9x6 ft |
| Height | 7 ft | 112 in |
| Door Type | zippered door | not stated |
| Windows | not stated | 1 |
| Ventilation | mesh-protected windows | not stated |
| Assembly | not stated | Pre-cut, pre-drilled, pre-stained pieces |
| Warranty | not stated | 5-year |
| Snow Load | not stated | 3,700 lb or 30 in |
| Material | PE Cover | Polycarbonate |
| Features | Windows | Windows, Shelves |
| Recommended Use | Outdoors | Garden, Backyard, Outdoors |
| Color | White | White |
| Style | Walk-in | Walk-in |
| Dimensions | 77 × 233 × 115 inches | 159 × 82.3 × 112 inches |
| Weight | 67.1 pounds | 798 pounds |
| Model | 845-069 | 2304185 |
Frequently asked questions
Which greenhouse is better for harsh weather?
The Backyard Discovery Bellerose is built for harsh weather gardening. It features polycarbonate panels and includes windows and shelves. Its substantial weight of 798 pounds provides stability against wind. This structure suits gardeners who need weather resistance and power access over simple ventilation.
How tall is the Outsunny greenhouse?
The Outsunny 20x10x7 ft greenhouse has a height of 115 inches. This tall interior allows serious gardeners to move around comfortably. It provides ample space for large plants. The walk-in style design prioritizes size and ventilation for seasonal plant protection.
Does the Backyard Discovery greenhouse have shelves?
Yes, the Backyard Discovery Bellerose includes shelves. These shelves help organize your gardening tools and smaller plants. The structure also features windows for natural light. This setup is ideal for gardeners who value durability and insulation in their outdoor space.
Is the Outsunny greenhouse easy to move?
The Outsunny greenhouse is relatively easy to move due to its light weight. It weighs only 67.1 pounds. This lightweight design makes it simpler to position in your garden. It is a portable solution for those who prioritize size over permanent installation.
What material is the Backyard Discovery frame made of?
The Backyard Discovery Bellerose uses polycarbonate for its panels. While the specific frame material is not listed, the structure is designed for durability. It is built for serious gardeners who need weather resistance. The white color complements most backyard settings.
Which greenhouse is larger?
The Outsunny greenhouse is significantly larger. It measures 20 by 10 by 7 feet, with a width of 233 inches. The Backyard Discovery model is 9 by 6 feet, with a width of 82.3 inches. The Outsunny option offers more interior space for large-scale plant protection.
Can I use the Outsunny greenhouse for seasonal plants?
Yes, the Outsunny greenhouse is best for large-scale seasonal plant protection. Its 20 by 10 by 7 feet of space accommodates many plants. The plastic cover and steel frame provide a controlled environment. It is suitable for gardeners needing a portable solution for seasonal growth.

