Support your mattress with GhostBed's foundation, frame and box spring alternative in one, featuring quick-snap assembly—no tools required! Sturdy, all-metal construction holds up to 3,000 lbs and replaces the need for a box spring or separate metal frame. Use with any mattress 9” height and up with 14” total height and a generous 12” under-bed clearance for storage. Easy, quick-snap assembly—no tools required!