Specifications of shed materials. 19mm t&g pressure treated tanalised cladding. Tanalised 61mm x 38mm (3’x2′) cls framework, tanalised 61mm x 38mm (3’x2′) cls floor bearers, tanalised (3'x2') cls roof Joists, Tanalised 23mm (1 inch) planking floor boards, 13mm t&g kiln dried roof cladding (No chipboard/ plyboard or OSB used in our sheds/ buildings at all.) Sheds/buildings made to customer spec