OSB(oriented strand board): Thickness:9mm,10mm,11mm,12mm,15mm,18mm,21mm,25mm Size:2440x2440;1250x2500 Density:680-730kgs/cbm ... OSB(oriented strand board):Thickness: 9mm, 10mm, 11mm, 12mm, 15mm, 18mm,Size: 2440 x 1220; 2500 x 1250Glue: E2 ... for roof decking,roof sarking,wall sheathing flooring,hoarding,signboards and portable building,packing or construction. Construction OSB