Large & Convenient: This greenhouse for outdoors has 5.6ft high walls and a 647 Cu.Ft. spacious interior. Feature a low threshold and double hinged doors for easy access. All Seasons Planting: Twin-wall greenhouse polycarbonate panels provide a warm planting environment in winter, your plants will thrive even in the coldest months. Transmittance: 90% Ventilation and Drainage:4 vent windows for air circulation, regulating temperature and humidity. Greenhouse kit plus drainage holes and attaed pipes to collect and drain water, manage rainy weather. Sturdy Framework:The sunroom kit includes aluminum frames,reinforcements, and triangular brackets for stability. Secured with expansion screws and ground anchors. Wind Rating:70mph; Snow Load:30psf Detailed Manual: User-friendly manual with clear steps and all necessary tools, ensures efficient and correct backyard greenhouse assembly. 3 DIY enthusiasts can erect in 8 hours. Combining both growing and recreation, our large heavy-duty polycarbonate greenhouses are perfect for home gardening enthusiasts. Growing vegetables, cultivating flowers, reading, working, and family fun make the greenhouse a cozy cottage for the family. Product Name: Polycarbonate Greenhouse Product Dimensions: 10x12x8 ft Sunshine board material: Twin-wall polycarbonate panels Thickness of sunlight board: 6mm Frame Material: Aluminum Frame Thickness: 1.5mm Foundation Material: Steel Volume: 647 Cu.Ft.