The Inst-a-matic® bed frame is an extra heavy-duty bed frame that is one of the most durable, well-made bed frames on the market today. Made of heavy-duty high carbon, recycled railroad rails with a water-based, lead-free finish. The unique wedge lock leg design becomes even stronger with use. Oversized side rails provide additional support. Solid rivet construction increases durability. Rounded corners provide safety and the recessed leg design offers additional toe room. The product is easy to assemble with no tools required. Includes rollers that can be used on carpet or hard-surfaced floors. 4,000 lb. weight capacity.