Behold the newest foundation of comfort. This mattress riser is an all-in-one support system that takes the place of an ordinary bed frame and box spring. The metal unit sets up quickly and without using any tools, creates a sleep haven with unwavering support. Included brackets attach the riser to a headboard. Even better: the clearance from frame to floor is incredibly spacious and ideal for under-bed storage. Better - Gray - Twin Foundation 37.5"W x 74.0"D x 14.0"H - 25.0 lb Better - Gray - Full Foundation 53.0"W x 74.0"D x 14.0"H - 37.0 lb Better - Gray - Queen Foundation 59.0"W x 79.0"D x 14.0"H - 40.0 lb Better - Gray - King Foundation (Set of 2) 74.0"W x 79.0"D x 14.0"H - 46.0 lb