Dual-use steel bed frame/foundation is a complete support system that replaces the need for the traditional box spring and bed frame. It is constructed with 100% steel to provide maximum support and durability for long-lasting use. You will find that its 12 points of contact from the mattress to the floor adds strength, stability and level support. And, their innovative design allows the dual-use steel bed frame/foundation to be folded for portability. Another feature is the 17 inches of under-bed storage to keep those needed items conveniently stored away.