Resilient, transparent acrylic clear as glass side panels, immune to UV rays, retain 90% light transmission and clarity Virtually unbreakable, twin-wall polycarbonate roof panels, filter the sunlight and block up to 100% of the harmful UV rays Thick resin frame improves insulation and creates extra durability for years to come Central profiles are reinforced with galvanized steel rods - for stronger construction Hinged, 80 cm wide side door and roof vent provide air circulation on warmer days. multi-wall polycarbonate roof sheets. Packed flat for home assembly. Additional features: easy DIY installation - sliding panels; assembly system. Maintenance free. External dimensions: size H266, W258, D384cm. Internal dimensions: size H259, W254, D374cm. NOT INCLUDED: base, dwarf wall, installation or internal window boards. Manufacturers 7 year guarantee.