Time to delivery was 8 weeks during which we were kept fully informed by very pleasant staff. Everything ran to schedule. Greenhouse which is about 15' by 6" is structurally very impressive and took 2 men 7 hours to erect. It is made of heavy duty plastic coated aluminium with toughened glass. No skimping anywhere- Union mortice lock on door, metal gutter and downpipe. Just so pleased with the greenhouse.