Steel Grating Weight: 1.Easy installation 2.Strong structure 3.Aesthetic ... We also provide stair ladder, compound steel grating, drainage pit/trench cover, and railing & stanchion. Special specifications can be produced ... catwalk, mezzanines/decking, stair tread, fencing, ramp, dock, trench cover, drainage pit cover, maintenance platform, pedestrian/crowded pedestrian, factory, workshop, motor rooms, ...