Our four season greenhouse kits outperform others at a lower cost, and have even more benefits!
Below you will find two greenhouse comparison charts. We compared our greenhouse kits by feature, size, and price to other quality polycarbonate greenhouses. All of our Growing Dome® greenhouse kits include:
- UV resistant, shatter-proof, insulating polycarbonate glazing panels
- A full set of pre-cut, color-coded struts, hubs and framing plus all hardware
- Automatic opening vents, or on the larger sizes, cooling fans
- A solar powered Climate Control System
- Reflectix insulation
- Shade cloth
- Select materials for the above ground pond
- Snowshed entryway with a door with a window
- 24” foundation wall with structural siding
- Drip edge flashing
See the greenhouse comparison chart below and decide for yourself! Growing Spaces® polycarbonate greenhouses can return your investment in full every 3 to 5 years. Use our ROI calculator to compare sizes!
Growing Spaces strives for a personal connection with our customers, while offering outstanding service, before and after the sale, as well as throughout the lifetime of our product. (5-Wall Comparison at the bottom of this page.)
Greenhouse Comparison of 2-Wall (8mm) Polycarbonate Covered Greenhouses
| Benefit | Growing Spaces “Growing Dome” | EKODOME “Terra” | Planta Greenhouses “Sungrow 32” | Greenhouse in the Snow “Basic Kit” |
| Ft.² | 350 | 364 | 320 | 918 |
| $ | 16,950 | 22,949 | 5,400 | 11,394 |
| $/Ft.² | 48 | 63 | 17 | 12 |
| Utility Free, Year Round Growing* | x | |||
| Thermal Mass | x | |||
| Undersoil Ventilation System | x | x | ||
| Automatic Vents | x | |||
| Insulating Blanket / Sunshade | x | |||
| 75+ psf Snow Load | x | |||
| 115+ mph Wind Load | x | |||
| 24″ Wall Included | x | |||
| Installation Offered | x | |||
| Gardening Classes Offered | x | |||
| Site Selection Advice | x | |||
| Building Department Assistance | x |
* In most US climates
At Growing Spaces we are committed to making the best possible greenhouse at an affordable price, while giving you all the features and benefits you need. With average gardening skills and productivity, our Growing Dome solar greenhouses can produce 2.5 pounds of fresh food per square foot annually, imagine how much you can save if you aren’t buying expensive store-bought fresh organic produce!
Growing Dome greenhouses can return your investment in full every 3 to 5 years.
Over the lifetime of our polycarbonate greenhouses, you can realize your investment 5 times over, assuming proper care of the Growing Dome greenhouse kit in the 15-20 year expected lifespan. The Growing Spaces Growing Dome might well be the best investment you could ever make in terms of health, fresh produce, and value for your dollar.
Greenhouse Comparison of 5-Wall (16mm) Polycarbonate Covered Greenhouses
| Benefit | Growing Spaces “Growing Dome” | Cross Country “Arctic” | Backyard Greenhouses “Traditional Series” | Greenhouse Megastore “Traditional” |
| Ft.² | 850 | 820 | 820 | 820 |
| $ | $31,950 | 64,640 | 64,640 | 72,509 |
| $/Ft.² | 37 | 79 | 79 | 88 |
| Utility Free, Year Round Growing* | x | |||
| Thermal Mass | x | |||
| Undersoil Ventilation System | x | |||
| Automatic Vents | x | x | x | x |
| Insulating Blanket / Sunshade | x | |||
| 75+ psf Snow Load | x | |||
| 115+ mph Wind Load | x | |||
| 24″ Wall Included | x | |||
| Installation Offered | x | |||
| Gardening Classes Offered | x | |||
| Site Selection Advice | x | |||
| Building Department Assistance | x |
* In most US climates