Unit Dimensions and Rough Openings

This article will list the Unit Dimensions and Rough Openings for common unit sizes. Sometimes other dimensions are needed for the order process. Below are dimension adders for both inswing and outswing measurements to convert the number to the type you need.

Opening Type Inswing Outswing
Width Height Width Height
Rough Opening Add 3/4″ to Unit Width Add 1/2″ to Unit Height Add 3/4″ to Unit Width Add 1/2″ to Unit Height
Brickmould Dimension Add 2-1/2″ to Unit Width Add 1-1/4″ to Unit Height Add 3″ to Unit Width Add 1-1/2″ to Unit Height
Masonry Opening Add 3″ to Unit Width Add 1-1/2″ to Unit Height Add 3-1/2″ to Unit Width Add 1-3/4″ to Unit Height
Boxed Unit Rough Opening Add together unit widths then add Rough Opening Width Adder Add together unit widths then add Inswing Rough Opening Width Adder
Transom Unit Add transom unit height to door height then add Rough Opening Adder Add transom unit height to door height then add Rough Opening Adder
Rough Opening: the opening in a standard wall
Brickmould Dimension: from edge of brickmould to edge of brickmould
Masonry Opening: the opening in a masonry wall
Boxed Unit Rough Opening: individual units mulled together
Transom: glass component on top of the unit

Heights

The height of a unit depends on the sill used and the swing of the unit.

Sill Type Unit Dimension Size Rough Opening Size
Inswing Adjustable Composite Sill (Standard) 82″ 82-1/2”
Inswing 7/4 Wood Sill 82″ 82-1/2”
Outswing Composite Sill (Standard) 81-3/16″ 81-11/16″
Outswing Bumper Sill 80-5/8″ 81-1/8″
Outswing 7/4 Wood Sill 82″ 82-1/2”
Public Access Sill 81″ 81-1/2”
All dimensions reflect a 6’8″ high door unit.
For 6’6” doors,
subtract 2” from the height.
For 7’0” doors,
add 4” to the height.
For 8’0” doors,
add 16” to the height.

Widths

Single Door Unit

Description Inswing Outswing
Unit Dimension Rough Opening Unit Dimension Rough Opening
10″ sidelite 11-1/2″ 12-1/4″ 11-1/2″ 12-1/4″
12″ sidelite 13-1/2″ 14-1/4″ 13-1/2″ 14-1/4″
14″ sidelite 15-1/2″ 16-1/4″ 15-1/2″ 16-1/4″
2’0″ 25-5/8″ 26-3/8″ 25-5/8″ 26-3/8″
2’4″ 29-5/8″ 30-3/8″ 29-5/8″ 30-3/8″
2’6″ 31-5/8″ 32-3/8″ 31-5/8″ 32-3/8″
2’8″ 33-5/8″ 34-3/8″ 33-5/8″ 34-3/8″
2’10” 35-5/8″ 36-3/8″ 35-5/8″ 36-3/8″
3’0″ 37-5/8″ 38-3/8″ 37-5/8″ 38-3/8″
3’6″ 43-5/8″ 44-3/8″ 43-5/8″ 44-3/8″

Single Door, One Sidelite, Continuous Sill, Standard Mullpost

Description Inswing Outswing
Unit Dimension Rough Opening Unit Dimension Rough Opening
3’0″ w 10″ s/l 48-5/8″ 49-3/8″ 48-5/8″ 49-3/8″
3’0″ w 12″ s/l 50-5/8″ 51-3/8″ 50-5/8″ 51-3/8″
3’0″ w 14″ s/l 52-5/8″ 53-3/8″ 52-5/8″ 53-3/8″

Single Door, One Venting Sidelite, Wide Mullpost

Description Inswing Outswing
Unit Dimension Rough Opening Unit Dimension Rough Opening
2’6″ w 12″ s/l 45-3/8″ 46-1/8″ N/A N/A
2’6″ w 14″ s/l 47-3/8″ 48-1/8″ N/A N/A
2’8″ w 12″ s/l 47-3/8″ 48-1/8″ N/A N/A
2’8″ w 14″ s/l 49-3/8″ 50-1/8″ N/A N/A
2’10” w 12″ s/l 49-3/8″ 50-1/8″ N/A N/A
2’10” w 14″ s/l 51-3/8″ 52-1/8″ N/A N/A
3’0″ w 12″ s/l 51-3/8″ 52-1/8″ N/A N/A
3’0″ w 14″ s/l 53-3/8″ 54-1/8″ N/A N/A

Single Door, Two Sidelites, Continuous Sill, Standard Mullpost

Description Inswing Outswing
Unit Dimension Rough Opening Unit Dimension Rough Opening
3’0″ w 10″ s/l 59-5/8″ 60-3/8″ 59-5/8″ 60-3/8″
3’0″ w 12″ s/l 63-5/8″ 64-3/8″ 63-5/8″ 64-3/8″
3’0″ w 14″ s/l 67-5/8″ 68-3/8″ 67-5/8″ 68-3/8″

Single Door, Two Venting Sidelites, Wide Mullpost

Description Inswing Outswing
Unit Dimension Rough Opening Unit Dimension Rough Opening
3’0″ w 12″ s/l 65-1/16″ 65-13/16″ N/A N/A
3’0″ w 14″ s/l 69-1/16″ 69-13/16″ N/A N/A

Double Door, 7/8″ Astragal

Description Inswing Outswing
Unit Dimension Rough Opening Unit Dimension Rough Opening
4’8″ 58-9/16″ 59-5/16″ 58-9/16″ 59-5/16″
5’0″ 62-9/16″ 63-5/16″ 62-9/16″ 63-5/16″
5’4″ 66-9/16″ 67-5/16″ 66-9/16″ 67-5/16″
5’8″ 70-9/16″ 71-5/16″ 70-9/16″ 71-5/16″
6’0″ 74-9/16″ 75-5/16″ 74-9/16″ 75-5/16″

Double Door, 7/8″ Astragal, Two Venting Sidelites, Wide Mullpost

Description Inswing Outswing
Unit Dimension Rough Opening Unit Dimension Rough Opening
5’0″ w 12″ s/l 90″ 90-3/4″ N/A N/A
5’0″ w 14″ s/l 94″ 94-3/4″ N/A N/A
5’4″ w 12″ s/l 94″ 94-3/4″ N/A N/A
5’4″ w 14″ s/l 98″ 98-3/4″ N/A N/A
5’8″ w 12″ s/l 98″ 98-3/4″ N/A N/A
5’8″ w 14″ s/l 102″ 102-3/4″ N/A N/A
6’0″ w 12″ s/l 102″ 102-3/4″ N/A N/A
6’0″ w 12″ s/l 106″ 106-3/4″ N/A N/A

Double Door, Standard Mullpost

Description Inswing Outswing
Unit Dimension Rough Opening Unit Dimension Rough Opening
4’8″ 58-13/16″ 59-9/16″ 58-13/16″ 59-9/16″
5’0″ 62-13/16″ 63-9/16″ 62-13/16″ 63-9/16″
5’4″ 66-13/16″ 67-9/16″ 66-13/16″ 67-9/16″
5’8″ 70-13/16″ 71-9/16″ 70-13/16″ 71-9/16″
6’0″ 74-13/16″ 75-9/16″ 74-13/16″ 75-9/16″

Triple Door, Standard Mullpost

Description Inswing Outswing
Unit Dimension Rough Opening Unit Dimension Rough Opening
7’0″ 88″ 88-3/4″ 88″ 88-3/4″
7’6″ 94″ 94-3/4″ 94″ 94-3/4″
8’0″ 100″ 100-3/4″ 100″ 100-3/4″
8’6″ 106″ 106-3/4″ 106″ 106-3/4″
9’0″ 112″ 112-3/4″ 112″ 112-3/4″

Updated on July 7, 2021

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