You should also check the type of frame your box spring has.
Can you put a full size mattress on a queen size bed frame.
Place the full size headboard at head end of queen size mattress and line up free slot holes of 8a mounting bracket plates with frame headboard mounting bracket.
The difference in width between a full size and queen is only six inches so there will only be a three inch overhang on both sides.
Queen headboard and or footboard usually measures 60 inches wide while full size mattresses and bed frames only measures 54 inches wide.
If your bed was handmade then it may not even.
Yes a queen sized mattress may fit a full size box spring.
After removing the queen size mattress and box spring push the frame inward from the foot of the mattress support to adjust its length to 75 inches.
Antique beds typically fit a double or full size mattress as those sizes were the only options available.
Since the metal bed frame dimensions are set for a full size mattress you will need to loosen the fasteners and make the bed frame 6 inches wider and 5 inches longer so the queen size mattress fits.
However it is important to check the dimensions of both the mattress and the box spring first as most have different standard sizes.
The discrepancy could lead to potential injury.