Full (Double) Mattress Dimensions
The full-size mattress (also called a double) measures 54 inches wide by 75 inches long. While wider than a twin, it's the same length. A full is adequate for a single adult but may be tight for couples.
How big is a full (double) mattress?
A full mattress (also called double) is 54 inches wide and 75 inches long. It provides 16 more inches of width than a twin.
Dimensions
Doorway Fit Analysis
Will a Full/Double Mattress fit through a standard doorway?
Will fit through with proper technique
- •Smallest dimension (thickness): 10"
- •Standard interior door: 32"
- •Standard exterior door: 36"
Fits with room to spare
Fits with room to spare
Fits with room to spare
Mattress Size Comparison
Frequently Asked Questions
Will a full mattress fit through a standard doorway?
Yes. When turned on its side, the 10" thickness passes through a 32" door easily. The challenge is maneuvering the 54" width around corners — take doors off hinges for maximum clearance.
What is the difference between a full and a queen mattress?
A queen is 6" wider (60" vs 54") and 5" longer (80" vs 75"). The queen is more comfortable for couples, while a full works well in smaller bedrooms for a single sleeper.
Is a full mattress big enough for two people?
A full mattress gives each person only 27" of width — about the same as a crib. For couples, a queen (60") or king (76") is recommended for comfortable sleep.
Related Mattress Sizes
Related Calculators
Check Your Doorway Fit
Use our doorway calculator with your actual measurements for an accurate fit analysis.
Calculate Doorway Fit