What Are the Standard Bed Frame Sizes?


Quick Answer

Standard bed frame sizes in the United States are as follows: twin (39"x75"), full (54"x75"), queen (60"x80") and king (76"x80"). Some longer and wider options are available. A twin XL measures 39"x80", while a full XL measures 54"x80". The California King is both the longest and widest, measuring 72"x84".

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Full Answer

Bed size standardization in the United States began around 1870, when dimensions for twin- and full-size beds were determined. King- and queen-size standardization followed in the 1950s.

Bed frame size dimensions can be used to determine what size is appropriate for a particular space. These dimensions may also be used in comparison with box spring size to determine an appropriate mattress size.

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