Hi yi, this is Brookside.
We are sorry that this bed frame is longer than the mattress and that one of the center support beams broke.
While this bed frame is designed to be slightly larger than a standard mattress, this is to provide enough room to allow you to make the bed efficiently. Once you add the bedding, the gap should not be noticeable.
Can you tell us more about how the center support leg broke? This bed frame is designed to be durable and it should not be breaking so easily with normal use.
Seeing as this bed frame has been returned, is there anything that we can do to improve your experience? We value you as a customer and care about your satisfaction.
Please email us at: support@brooksidehomedesigns.com if there is anything that we can do for you.
Best,
Brookside
-Part of the Maven Family