Large Walk in Greenhouse: Bring your fruits, vegetables, herbs, and flowers together into a safe and temperate space with our outdoor greenhouse. Extend the growing season, shielding plants from extreme temperatures. Use our greenhouse as your own personal plant nursery or grow tropical; it's all up to you. Look in or Let Air Out. Let Good in, Keep Bad Out Outdoor Ready Greenhouse Plant Nursery Greenhouse Dimensions: Overall Dimension: 8' L x 5.9' W x 7.5' H; Window Size: 24' W x 27.5' H; Door Size: 35.5' W x 71.75' H.