This walk-in greenhouse offers expanded storage with 2 rear shelves and 12 side shelves, each built with upgraded steel wire and high-strength connectors to support up to 46 lbs per shelf. Its roll-up zipper mesh door and screen windows allow effective temperature and humidity control for optimal plant growth in changing weather. With a durable PE mesh cover and sturdy steel-frame construction, it provides year-round protection for seedlings, herbs, vegetables, and flowers.Features: Expanded Storage Capacity – Includes 2 back shelves and 12 side shelves, offering more placement space than standard greenhouses; each shelf supports up to 46 lbs with upgraded steel wire and reinforced connectors.Zipper Mesh Door & Screen Windows – Roll-up design helps regulate temperature and humidity, keeping the greenhouse warm when closed and well-ventilated when opened.Easy to Set Up – Built with high-hardness connectors and a durable steel frame for quick assembly and stable structure, suitable for indoor or outdoor use.Heavy-Duty PE Mesh Cover – Constructed with 5.7 oz/yd² (135 g/㎡) waterproof, UV-resistant, and tear-resistant PE mesh to protect plants from frost, wind, rain, and sun.Sturdy Year-Round Construction – Features PE-coated 16mm steel tubes and PP connectors that are rust-resistant and durable for long-term gardening use.Spacious Walk-In Interior – Measures 56" D × 56" W × 77" H, providing ample room for vegetables, herbs, and flowers with comfortable walk-in access for daily care.