Even though an Eastern King wasn't even listed as an option when we bought this bed, I'm pretty sure that's what they sent me instead of the CalKing I ordered, because I have an extra 3 inches on each side of the bed sticking out. We, of course, didn't notice that until it had been assembled, the boxes put away, and the mattress put on. It is in the guest room and we were able to make the cal king mattress just fit length wise. So it wasn't worth disassembling and sending back. I really love the bed otherwise, just wish the dimensions had been right. It's sturdy and quite attractive (tho the cream fabric on the bed has a slight green undertone, which you don't see in the pics).