More Plants To Place Than Ever: 2 shelves on the back and 12 side shelves of this greenhouse can contain more stuff than normal shelves. Upgraded steel wire shelves, high hardness connectors and powder-coated steel poles make higher load-bearing capacity possible (Max 46 LBS/shelf, others: 15-20 LBS/shelf). Zipper Mesh Door and Screen Windows: The roll-up door and mesh windows help to control the temperature and humidity when weather changes. The walk-in greenhouse can maintain higher temperatures when fully closed, and cool down by rolling up all windows and door. Easy to Set up: The greenhouse is composed of high hardness connectors and a durable steel frame, easy to set up and stable. The hot house can be used for seedlings, herbs, vegetables, flowers etc outdoors or indoors, without suffering direct sunlight when you are at work. Durable PE Mesh Cover: Made with 5.7 oz/yd² (135 g/㎡) heavy-duty PE mesh cover of green houses for outside, which is waterproof, UV-resistant, and tear-resistant. Protects plants from frost, wind, rain, and sun while ensuring ample sunlight. This indoor greenhouse built with PE-coated 16mm steel tubes and PP connectors. Rust-resistant, sturdy, and durable enough for year-round outdoor gardening use. Spacious Walk-In Design: 56" D × 56" W × 77" H greenhouse with tall walk-in access. Large interior is perfect for vegetables, herbs, flowers, and easy daily care.