7x2 floor timbers 6.2 metres long 20 lengths. 5x2 rafters 5.2 metres long 30 lengths. 4x2 stud walls 4.8 metres long 20 lengths. 6x2 flat roof 4.2 metres long 18 lengths. 30 600x2.4 metre m/r t/g flooring boards. 8 sheets 18mm ply. 8 sheets 12mm ply.