Our Glideawayframes are made of steel and come with a 10 year warranty. These frames are heavy duty! Instead of coming with a little tiny wheel that has no lock like other stores carry; our frames come on carpet glides. Carpet glides allow the fram to stay in place but are just as easy to move. These are great for hardwood floors and carpet as they do not scratch up the wood or tear the fibers on carpet when moving the bed set and frame. The frames also have a headboard attachment. Queen frames come with a center support for warranty purposes and the king frame has a double center support for warranty purposes.