When we tell you that Palram - Canopia Balance greenhouse kits provide your plants with optimal conditions for nutrition and growth, we mean it. With two types of glazing, you get a balanced DIY greenhouse that combines the protection of diffuse double-wall roof panels with the light transmission of crystal-clear wall panels for ideal growing conditions. All panels are made of UV-protected polycarbonate, a high-end glass-like and virtually unbreakable polymer that is particularly suited to greenhouses. The extra-large working area gives you ample space to grow an abundance of vegetables and herbs and to store the tools and accessories you need. The Balance greenhouse is also extremely accessible with large double doors and a low threshold for wheelbarrows to enter and exit and enough space to transfer large plant boxes. The combination of the safe polycarbonate panels with the rust-resistant aluminum frame and extra strong support beams provides you with a well-designed and durable greenhouse, so you never have to worry about the strength or safety of your greenhouse. For a beautiful, well-designed and spacious addition to your gardening experience, purchase a Balance backyard greenhouse today! - Polycarbonate: 100% UV protected, virtually shatterproof and will not yellow or become brittle over time