MATTRESS SIZE REFERENCE GUIDE

An Industry Trade Association has established standards for mattress sizes that includes allowable variances. Below is a detailed explanation of these standards.

 

MATTRESS VARIATION STANDARDS

The chart below outlines mattress sizes as per industry standards with acceptable variance ranges.

 

Finished Mattress Sizing Variations
Mattress Size	Industry Standard Dimensions (+/-1/2")	Allowable Variance (Length & Width)	Measurement With Variance
			Width	Length
Twin	38" x 74.5"	-0.5"	37.5"	74"
TwinXL	38" x 79.5"	-0.5"	37.5"	79"
Full	53" x 74.5"	-0.5"	52.5"	74"
Queen	60" x 79.5"	-0.75"	59.25"	78.75"
King	76" x 79.5"	-0.75"	75.25"	78.75"
Cal King	72" x 83.5"	-0.75"	71.25"	82.75"

 

*All dimensions are in inches.
*Finished sizes are measured from outside to outside of tape edge at the centerlines of the width and length.
*The distance is measured between extreme outside edges of finished construction.