Silver Framed Garden Greenhouse. This greenhouse features a rust-resistant, brushed aluminium frame and an aluminium alloy base that is designed to stand the test of time.  Your plants will love the diffused light from the clear, twin-wall polycarbonate panels with the added benefit of twice the heat retention of single-layer panels.  Get growing today and let our high-quality greenhouse help you bring your green dreams to life.. Features. Rust resistant.. Heat retention.. Built-in rain gutters.. Vent setting for perfect air circulation.. Dimensions Details. Materials: 1 mm thickness Aluminum frame and 4 mm poly-carbonate panel.. Frame Colour: Silver. Panel Colour: White. Size option:. 6' x 6' ft (L 190 x W 190 x H 195 cm, 1 vent). 8' x 6' ft (L 252 x W 190 x H 183.3 cm, 1 vent). Wheel door size: W 59 x 161 cm.. Please note: base floor not included. Package Includes. Greenhouse x 1. Instruction Manual x 1