1:Material:SPF-J (spruce) 2:Size:1100x650x600/310cm, the dimension can be customized 3:Thickness of wall: 5 or 7cm Wooden summer house, KD design, natural materials, 30 years warranty, easy assembly, earthquake-proof, fire/moisture resistance, thermal insulation, structure diversification, modeling individuation, flexibility, low carbon, space agility. We can design and manufacture house ...