Walk-In Hoop Greenhouse Kit: This walk-in greenhouse gives you a personal plant nursery for your garden. Control heat, humidity and stop sun damage by blocking harmful UV. If it's green, you can house it: vegetables, herbs, flowers, succulents, and saplings. Protect plants from cold, wind, rain, and animals. Grow tropical plants and expand your planting potential. Large Zipper Door & Roll-Up Windows Heavy-Duty Outdoor Ready Material An Extra-Large Walk in Greenhouse Outdoor Greenhouse Information: Overall Dimensions: 175.25' L x 78.75' W x 78.75' H. Window Size: 16.5' L x 14.25' W. Door Size: 43.25' L x 70.75' W.