Night Therapy Easy To Assemble SmartBase Mattress Foundation/Platform Bed Frame/Box Spring Replacement, Twin 14 inches high with 12.5 inches of clearance under the frame for valuable under bed storage space Eliminates the need for a traditional box spring and bed frame Compact design allows for tight spaces such as staircases and doorways Multiple points of contact to the floor for level support Sturdy steel structure protects your mattress by providing strong support