You have a designated spot for everything related to gardening with this greenhouse kit, so you don't need to build a garden shed; not only can you grow vegetables, flowers and other plants, but you can also store all your gardening tools and equipment, accessories and supplies. This greenhouse kit for winter is made of 4mm twin-wall UV/wind resistant polycarbonate panels which can block up to 99.9% of UV rays and provide 90% light transmission, along with a thickened premium aluminum frame, and all this together with a heavy-duty galvanized base helps provide solid support for your entire plant nursery. If you need a reliable solution with a smart design for your greenhouse needs, this walk-in greenhouse makes it easy to care for all your plants at once; a sloping roof and a good gutter system allows effective water drainage, and it also features a sliding door as well as an adjustable window to increase ventilation while still keeping unwanted "troublemakers" outside. The package contains detailed installation instructions with pictures, and each accessory is labeled with a number corresponding to the instruction; despite the structural upgrade of the greenhouse, you can easily and conveniently assemble this large winter greenhouse. You can easily spend a fortune on plants every spring, but still wish for more flowers to fill in your garden; when you have a greenhouse, you can grow as many seeds as you want and most times, you will have enough greenhouse plants to give to others, which means that you can save a lot of money on plants.