Heavy duty gratings are made of thicker steel of 4 or 5 mm and have standard flat edging, with the edge thickness being the same as the bearing bars. The use of thicker steel greatly increases the load carrying capacity which makes these gratings ideally suited for extra heavy loads. Heavy duty gratings are widely used in industrial and residential building. Anti-slip serration is possible on both the bearing and crossbars of all types. In addition, specific designs are possible
25x4 to 150x5 mm
material steel quality S235JR - 10 x 3 and 12 x 3 mm (only applies to 4 mm bearing bars)
material steel quality S235JR - 12 x 5 (applies to both 4 and 5 mm bearing bars)
material stainless-steel quality Aisi 304 (1.4301) and Aisi 316l (1.4404) - 15x5 mm (applies top both 4 and 5 mm bearing bars)
material aluminium quality AlMg3g22 - 15 x 5 mm (applies to both 4 and 5 mm bearing bars). from 100 mm bearing bar height, acrossbar size of 20x5 mm applies to all materials types.