Building a largish shed (5M x 3M) and wondering if I need thin OSB or ply all around the external frame ?
i.e. 4x2 framing uprights, then 9mm or 12mm OSB then membrane then cladding. Or can I do without the OSB ? Are there pluses/minuses apart from cost?
i.e. 4x2 framing uprights, then 9mm or 12mm OSB then membrane then cladding. Or can I do without the OSB ? Are there pluses/minuses apart from cost?