... , 140mmx25mm, 230mmx9mm, 70mmx12mm.or can be customized, many colors available. Solid and hollowed are available. Main technical indexNO.PropertyResultTest Method1Density1.23g ... 12” to 14”, the joist can be wpc or real timber.b, Screw the wpc decking boards onto the joists one by ... , FSC certified, passed ROHS, SGS, CTI testProject example Mahogany Outdoor Solid WPC Decking/Home Flooring