Install the headboard modification brackets loosely to the bed frame via the holes used to secure the headboard to the frame.
Can i put a king mattress on a queen frame.
Measure from one bracket to the other and note where the brackets need.
Check that the smallest possible setting is wider than 60 inches the width of a queen mattress.
Your queen mattress is only 60 inches wide but it is also 80 inches long.
The frame will hold your bed since it s bigger but some of the frame will be sticking out.
If you have your heart set on the sleigh bed it is possible to make it work.
Step 2 slide the rails together until the frame width is 60 inches.
The key to making this work is to make it look like it s intentional by turning it into a platform bed.
Some rails are built to be compatible for queen and king mattresses in which case you can stop at this step.
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You ll use queen to king modification plates to connect your queen headboard to a king bed frame.
A king bed frame holds a mattress that is 76 inches wide and 80 inches long.