Very small frame! We were very disappointed with this purchase. The end result looks nice but the frame is too small for a king sized bed. I had to go back several times to make sure they hadn’t sent me a queen instead. We had to seriously squeeze the mattress in there and force the sides into place. Construction is really poor. Many of the upholstered sides came with loose fabric so there is a wrinkled effect. We only kept it because we had already thrown away the box. If you have a chunky mattress, I don’t recommend.