Mattress and Box spring Sizes

Mattress Standard* sizes (Nominal) in the US and Canada

This list is intended to inform you about the most popular dimensions and is not a list of all sizes available on the market. For other dimensions, such as dimensions for recreational vehicles or custom dimensions, please contact one of our representatives in one of our stores.

* Attention: Standardized dimensions (Nominal) are rounded values that are used for reference purposes and are not the exact size of mattresses or box springs. Two mattresses of the same nominal size may have slightly different dimensions due to manufacturing tolerances, the amount of padding, the type of materials, the type of support, etc.  To get the exact dimensions of a specific mattress, it is best to contact one of our representatives in one of our stores.

The standard mattress sizes  are :

Crib   28 in × 52 in (71 cm × 132 cm)
Half queen  30 in x 80 in (76.2 cm x 203,5 cm)
Twin or single   39 in × 75 in (99 cm × 190,5 cm)
Single L or twin XL   39 in × 80 in (99 cm × 203,5 cm)
Three-quarters   48 in × 75 in (122 cm × 190,5 cm)
Full / Double   54 in × 75 in (137 cm × 190,5 cm)
Full XL   54 in × 80 in (137 cm × 203,5 cm)
Queen   60 in × 80 in (152,5 cm × 203,5 cm)
King   76 in × 80 in (193 cm × 203,5 cm)
California king   72 in × 84 in (183 cm × 213,5 cm)

 

The box spring standard sizes in the US and Canada are the same of standard bed sizes except:

  • King box spring will be of two single L or twin XL;
  • California King box spring will be of two 36 in x 84 in (91.5 cm x 213,5 cm).