12-Tier stainless steel construction Wider length allows two (2) full-size steam table pans and/or food pans to fit on each tier Dual-ended locking bars prevent pans from sliding out Caster bumpers protect walls, doors and rack during minor collisions Channel ledges are tightly welded to rails providing better support for pans 4 inch dia double-bearing, full-swivel casters help stabilize weight capacity Overall capacity of up to 500 Lbs Top capacity: 100 Lbs Each shelf capacity: 50 LbS Ships knocked down 1-1/2 inch and 1-3/4 inch spacing between each tier