Open end standard size 19FT×3FT steel grating

20FT×3FT size steel grating is the standard size of all steel gratings. The end can be open or close.The surface is hot dip galvanization. It can be cut to any size the client needs. The load bar size is usually 1'' or 1 3/16''.Steel grid plate is made by Carbon or mild steel of certain sizes through the processing of grooving, lock-pressure, welding, finishing and other treatment. Industrial bar gratings can be actually made from copper, aluminum and other materials, while galvanized steel grating is the mostly used one due to its economic cost and good property.