Hardboard Specification:1220x2440 Thickness:2mm/2.5mm/2.8mm/3.0mm/3.2mm/3.5mm. Denisty:900-950kg/m3 Grade:First grade Qaulity:standard and waterproof hardboard Material:Major poplar ,mixed some hardwood Colors:Darkish/Dark brown Package:Loose packing. lq8820047209 AT yahoo.com.cn lq8820047209 AT hotmail.com David