Heavy Duty Greenhouses for Outside: Our greenhouses for outside give you a personal plant nursery for your garden. Control heat, humidity and stop sun damage by blocking harmful UV. Extend the season or grow tropical plants and expand your planting potential..Mesh Protected: A zippered door, roll-up bottom vents, and six windows offer ventilation. If your greenhouse gets too groggy, open any option to clear out excess humidity. The windows are mesh-protected, meaning winged annoyances will stay away..Heavy-Duty Greenhouse Cover: Our 140 GSM PE cover features a reinforcement grid to prevent tearing. It protects plants from UV scorching while allowing 85% of nourishing sunlight to pass through..Heavy-Duty Steel Frame: Our outside greenhouse features a heavy-duty galvanized steel frame that's reinforced with seven crossbars, two diagonal braces, and a ground frame. Please bury the extended edges deep in the soil and pull guy ropes tightly from the ground stakes..Heavy Duty Tunnel Greenhouse Info: Overall Dimensions: 116.25" L x 78.75" W x 78.75" H. Window Dimensions: 18" L x 15.75" W. Recommended that 1-2 people assemble it.