The certified model is straightforward to construct and comes flat packed with instructions, a fixing kit, 34mm tongue and groove chalet cut timbers (which simply slot together), 16mm roof boards, 19m more→m floor boards, wind braces and heavy duty felt shingles. For strength and security the door frame is laminated and the door features a cylinder lock, double toughened glass windows, and all foundation joists are delivered pre-treated. Features and Benefits Made with chalet cut Nordic Spruce for longevity and durability Supplied with tongue and groove roof and floor boards and treated foundation joists Laminated door frame with a secure cylinder lock, stainless steel door sill and toughened single …