Mattress Sizes

Originally published on April 14, 2017.

These are standard sizes in Canada and the United States. Standard sizes in other countries varies. These measurements are useful when building beds.

Size Width Length
Crib 28 in (71 cm) 52 in (133 cm)
Small Single, Cot 30 in (76 cm) 75 in (191 cm)
Twin, Single, Bunk 39 in (99 cm) 75 in (191 cm)
Extra-Long Twin 39 in (99 cm) 80 in (203 cm)
Full, Double 54 in (137 cm) 75 in (191 cm)
Extra-Long Full, Extra-Long Double 54 in (137 cm) 80 in (203 cm)
Queen 60 in (152 cm) 80 in (203 cm)
Expanded Queen, Super Queen, Olympic Queen 66 in (168 cm) 80 in (203 cm)
King 76 in (193 cm) 80 in (203 cm)
California King, Long King 72 in (183 cm) 84 in (213 cm)