I never wanted  a king sized bed because of the difficulty in moving them when that time comes, we are a military family, and this box spring was easy to put together, and it will be easy to take apart when I have to move!  The cool-gel memory foam mattress I bought stated I was not to use an inner spring box spring with this mattress.  My new mattress and this new box spring work wonderfully together, best nights sleep in a very long time!