The company provides security code stair boards meet OSHA standards, around the edge, surface sanding and with a black trim. 
 Common staircase board design can refer to all kinds of molded grating before, you can select the type you want, but the size to meet the "molded grid grid size multiple of + rib size," this requirement. 
 And common stairs of different, specially designed molded stairs standard film, with a higher strength, but also conducive to cutting edge, to save material. The thickness of 1.5 "(about 38.1mm), the entire board size 10 'x 1' 10.25" (approximately 565mm x 3048mm)