What is Nominal Size?
Our website allows the visitors to filter for a specific Nominal Size. A nominal size or trade size for doors is a size "in name only" used for identification. The nominal size may not match any dimension of the door but within the domain of the door size. For example, a 2β/8β wide door can any of the followings:
- 32β
- 31-ΒΌβ
- 31- ΒΎβ
This is the actual door size & does not include the frame thickness. For Example, the above 32β wide door can be 33-Β½β (net frame size) once it is hung on a frame.

The nominal size for the unit below is 47βx80β (3β11βx6β8β)

This is made of a 32"x80" and a 15"x80" sidelite. When you add these components, it will be a total of 47" x 80". However, the actual unit size for this unit is 48-1/2" x 81-3/4". The actual unit is the size of the unit after is it fully assembled with a frame.