Door Lite Sizes & Door Dimension Information
This guide provides standard glass (door lite) sizes, stile dimensions, rail dimensions, cross bar options, and transom glass sizing for YKK AP entrance doors. All dimensions include a 1/2″ threshold allowance where noted.
Standard Door Stile and Rail Dimensions
Component | 20D Narrow Stile (4″ Bottom Rail) | 20D Narrow Stile (10″ Bottom Rail) | 35D Medium Stile (10″ Bottom Rail) | 50D Wide Stile (10″ Bottom Rail) |
Offset Stile | 2-1/8″ | 2-1/8″ | 3-1/2″ | 5″ |
Center Pivot / Left Meeting Stile | 2-3/16″ | 2-3/16″ | 3-9/16″ | 5-1/16″ |
Right Meeting Stile | 2-1/8″ | 2-1/8″ | 3-1/2″ | 5″ |
Top Rail | 2-5/16″ | 2-5/16″ | 3-15/16″ | 5″ |
Bottom Rail | 3-15/16″ | 10″ | 10″ | 10″ |
Rail and Cross Bar Options
Component | Size |
10″ Bottom Rail | 10″ |
8″ Bottom Rail | 7-15/16″ |
3/4″ Cross Bar | 3/4″ |
3-7/16″ Cross Bar | 3-7/16″ |
8″ Cross Bar | 8-5/32″ |
10″ Cross Bar | 10-7/32″ |
Standard Door Glass Sizes
20D Narrow Stile (4″ Bottom Rail)
Door Size | Glass Size |
2′-6″ × 7′-0″ | 25-1/8″ × 76-1/2″ |
3′-0″ × 7′-0″ | 31-1/8″ × 76-1/2″ |
3′-6″ × 7′-0″ | 37-1/8″ × 76-1/2″ |
Auto Showroom Door Inactive Leaf 5′-0″ × 7′-0″ | 55-1/8″ × 76-1/2″ |
20D Narrow Stile (10″ Bottom Rail)
Door Size | Glass Size |
2′-6″ × 7′-0″ | 25-1/8″ × 70-7/16″ |
3′-0″ × 7′-0″ | 31-1/8″ × 70-7/16″ |
3′-6″ × 7′-0″ | 37-1/8″ × 70-7/16″ |
Auto Showroom Door Inactive Leaf 5′-0″ × 7′-0″ | 55-1/8″ × 72-1/2″ |
35D Medium Stile (10″ Bottom Rail)
Door Size | Glass Size |
2′-6″ × 7′-0″ | 22-3/8″ × 68-13/16″ |
3′-0″ × 7′-0″ | 28-3/8″ × 68-13/16″ |
3′-6″ × 7′-0″ | 34-3/8″ × 68-13/16″ |
Auto Showroom Door Inactive Leaf 5′-0″ × 7′-0″ | 52-3/8″ × 70-7/8″ |
50D Wide Stile (10″ Bottom Rail)
Door Size | Glass Size |
2′-6″ × 7′-0″ | 19-3/8″ × 67-3/4″ |
3′-0″ × 7′-0″ | 25-3/8″ × 67-3/4″ |
3′-6″ × 7′-0″ | 31-3/8″ × 67-3/4″ |
Auto Showroom Door Inactive Leaf 5′-0″ × 7′-0″ | 49-3/8″ × 69-13/16″ |
Special Size Door Glass Formulas
For custom-sized doors, use the following formulas:
Stile Type | Height Formula |
20D Narrow Stile (4″ Bottom Rail) | Door Opening − 7-1/2″ |
20D Narrow Stile (10″ Bottom Rail) | Door Opening − 13-9/16″ |
35D Medium Stile (10″ Bottom Rail) | Door Opening − 15-3/16″ |
50D Wide Stile (10″ Bottom Rail) | Door Opening − 16-1/4″ |
Single Door Width
Stile Type | Formula |
20D Narrow Stile (4″ Bottom Rail) | Door Opening − 4-7/8″ |
20D Narrow Stile (10″ Bottom Rail) | Door Opening − 4-7/8″ |
35D Medium Stile (10″ Bottom Rail) | Door Opening − 7-5/8″ |
50D Wide Stile (10″ Bottom Rail) | Door Opening − 10-5/8″ |
Pair Door Width
Stile Type | Formula |
20D Narrow Stile (4″ Bottom Rail) | (Door Opening ÷ 2) − 4-7/8″ |
20D Narrow Stile (10″ Bottom Rail) | (Door Opening ÷ 2) − 4-7/8″ |
35D Medium Stile (10″ Bottom Rail) | (Door Opening ÷ 2) − 7-5/8″ |
50D Wide Stile (10″ Bottom Rail) | (Door Opening ÷ 2) − 10-5/8″ |
Transom Glass Sizes
YES 40 FS/FI
Glass Type | Size Formula |
Single Glass Width | D.L.O. + 5/8″ |
Single Glass Height | D.L.O. + 5/8″ |
Insulating Glass Width | D.L.O. + 7/8″ |
Insulating Glass Height | D.L.O. + 7/8″ |
YES 45 FS/FI
Glass Type | Size Formula |
Single Glass Width | D.L.O. + 5/8″ |
Single Glass Height | D.L.O. + 5/8″ |
Insulating Glass Width | D.L.O. + 7/8″ |
Insulating Glass Height | D.L.O. + 7/8″ |
YES 45 TU/FT
Glass Type | Size Formula |
Insulating Glass Width | D.L.O. + 7/8″ |
Insulating Glass Height | D.L.O. + 7/8″ |
YES 45 XT
Glass Type | Size Formula |
Insulating Glass Width | D.L.O. + 7/8″ |
Insulating Glass Height | D.L.O. + 7/8″ |
Important Notes
- Certain door configurations and hardware selections may require non-standard top rails or bottom rails.
- Modified rail dimensions may affect glass sizing.
- Consult your YKK AP representative for project-specific requirements.
- All entrance door glass must be safety glazing.
- Verify compliance with all applicable building and safety codes before fabrication and installation.
