Our adjustable foundation has legs and removable casters (wheels) that go all the way to the floor. The height for the foundation is as follows: 15.75" Foundation with legs & casters 13.75" Foundation with legs only (casters removed) 9" Foundation only (legs & casters removed) The foundation is fully functional with or without legs. Just add the height of the mattress to whichever option above best fits your needs to determine the total height. The weight of our adjustable foundation varies by size, the weights for each size are listed below: Twin: 168 LBS Twin XL: 172 LBS Full: 219 LBS Queen: 234 LBS King: (2 X 172) 344 LBS Cal King: (2 X 164) 328 LBS