Dual use Mattress Foundation Bed Frame with Slats 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 add 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 13 inches of under-bed storage to keep those needed items conveniently stored away.