This 12ft x 8ft insulated Summer house/Cabin/ Garden Office is made from quality pressure treated Barrel board with 100mm insulation and wrapped in a breathable membrane. Features Fully insulated – U Value solutions (UO.18, UO.13, UO.1)Core performance 1.24 R ValueRoof performance 2.14 R ValueWall performance 2.58 R Value Rockwool fireproof insulation. Double glazed composite doors (choice of white or upgrade to black, grey or oak finish) Corner trims Pressure-treated Floor with O.S.B 20mm covering on top of 100mm floor insulation. Laminate timber floor of customers choice. 400mm partitions on sides for Extra Strength Roof 150mm Thick. With Black steel P.V.C coated roof. Insulated with Rock wool insulation. Black steel P.V.C coated trims on sides. 2100mm High Walls at front. 1900mm at rear.