mupater polycarbonate greenhouse for outdoor, walk-in garden green house kit for plants in winter with heavy duty aluminum frame, base, sliding door and adjustable roof vent, 6' x 10' x 6', silver mupater the frame of our heavy-duty walk-in greenhouse kit is made of premium corrosion resistant and weather resistant powder-coated thickened aluminum, which is rust-resistant and more sturdy to deal with all kinds of weather. the internally tight closure triangular structure can effectively improve the stability of the outdoor greenhouse to prevent it from falling apart under the harsh environment. the polycarbonate garden green house with a sloped barn rooftop design, which can effectively improve the wind resistance of the product. the panels of greenhouse with uv-resistant polycarbonate have good thermal insulation effect and strong impact resistance that can withstand temperatures from -4°f up to 140°f, which can help you protect plants from frost, rain, overheating and pets. the rain gutters on both sides can effectively drain rain and snow. this heavy-duty polycarbonate greenhouse kit comes with galvanized base for better stability while using in windy days. just install the base by completely inserting the base into soil to make sure the base will not wobble. a standard wind resistance of beaufort 5, 19–24 mph is expected. the sliding door also makes it more easier for you to walk into the greenhouse for daily use. unlike others, our polycarbonate walk-in greenhouse for outdoor has double-window design with adjustable poles for better ventilation, which can create an ideal growth environment for your plants. the 6’ x 10’ greenhouse has a large space that can accommodate enough plants and gardening tools, you can directly enjoy the fun of growing plant after assembly.