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Hollow Metal Door Rough Opening Chart

Use this page to quickly find what size hollow metal door and frame package you need for the rough opening in your building.

Interior Knock Down Metal Frames That Wrap Around The Wall:


Rough Opening Width = Door & Frame Width + 2"
Rough Opening Height = Door & Frame Height +1"


Example: If your door package is a 3'0" x 6'8" package, then the rough opening would be 38" x 81"

Exterior Knock Down or Welded Metal Frames That Butt Against The Wall:


Rough Opening Width = Door & Frame Width + 4-1/2"
Rough Opening Height = Door & Frame Height + 2-1/4"


Example: If your door package is a 3'0" x 6'8" package, then the rough opening would be 38" x 82-1/4"

Rough Opening Chart For Common Metal Door Frame Sizes:


Interior Knock Down Hollow Metal Door Frames That Wrap Around The Wall:

Door & Frame Size: 2’0” x 6’8” Rough Opening Size: 26“ x 81”
Door & Frame Size: 2’4” x 6’8” Rough Opening Size: 30“ x 81”
Door & Frame Size: 2’6” x 6’8” Rough Opening Size: 32“ x 81”
Door & Frame Size: 2’8” x 6’8” Rough Opening Size: 34“ x 81”
Door & Frame Size: 3’0” x 6’8” Rough Opening Size: 38“ x 81”
Door & Frame Size: 3’4” x 6’8” Rough Opening Size: 42“ x 81”
Door & Frame Size: 3’6” x 6’8” Rough Opening Size: 44“ x 81”
Door & Frame Size: 3’8” x 6’8” Rough Opening Size: 46“ x 81”
Door & Frame Size: 4’0” x 6’8” Rough Opening Size: 50“ x 81”
Door & Frame Size: 2’0” x 7’0” Rough Opening Size: 26“ x 85”
Door & Frame Size: 2’4” x 7’0” Rough Opening Size: 30“ x 85”
Door & Frame Size: 2’6” x 7’0” Rough Opening Size: 32“ x 85”
Door & Frame Size: 2’8” x 7’0” Rough Opening Size: 34“ x 85”
Door & Frame Size: 3’0” x 7’0” Rough Opening Size: 38“ x 85”
Door & Frame Size: 3’4” x 7’0” Rough Opening Size: 42“ x 85”
Door & Frame Size: 3’6” x 7’0” Rough Opening Size: 44“ x 85”
Door & Frame Size: 3’8” x 7’0” Rough Opening Size: 46“ x 85”
Door & Frame Size: 4’0” x 7’0” Rough Opening Size: 50“ x 85”
Door & Frame Size: 3’0” x 8’0” Rough Opening Size: 38” x 97”
Door & Frame Size: 4’0” x 8’0” Rough Opening Size: 50” x 97”
Door & Frame Size: 6’0” x 6’8” Rough Opening Size: (Double Doors) 74” x 81”
Door & Frame Size: 6’0” x 7’0” Rough Opening Size: (Double Doors) 74” x 85”

Exterior Knock Down or Welded Hollow Metal Door Frames That Butt Against The Wall:

Door & Frame Size: 2’0” x 6’8” Rough Opening Size: 28-1/2“ x 82-1/4”
Door & Frame Size: 2’4” x 6’8” Rough Opening Size: 32-1/2“ x 82-1/4”
Door & Frame Size: 2’6” x 6’8” Rough Opening Size: 34-1/2“ x 82-1/4”
Door & Frame Size: 2’8” x 6’8” Rough Opening Size: 36-1/2“ x 82-1/4”
Door & Frame Size: 2’10“ x 6’8” Rough Opening Size: 38-1/2“ x 82-1/4”
Door & Frame Size: 3’0” x 6’8” Rough Opening Size: 40-1/2“ x 82-1/4”
Door & Frame Size: 3’4” x 6’8” Rough Opening Size: 44-1/2“ x 82-1/4”
Door & Frame Size: 3’6” x 6’8” Rough Opening Size: 46-1/2“ x 82-1/4”
Door & Frame Size: 3’8” x 6’8” Rough Opening Size: 48-1/2“ x 82-1/4”
Door & Frame Size: 4’0” x 6’8” Rough Opening Size: 52-1/2“ x 82-1/4”
Door & Frame Size: 2’0” x 7’0” Rough Opening Size: 28-1/2“ x 86-1/4”
Door & Frame Size: 2’4” x 7’0” Rough Opening Size: 32-1/2“ x 86-1/4”
Door & Frame Size: 2’6” x 7’0” Rough Opening Size: 34-1/2“ x 86-1/4”
Door & Frame Size: 2’8” x 7’0” Rough Opening Size: 36-1/2“ x 86-1/4”
Door & Frame Size: 2’10“ x 7’0” Rough Opening Size: 38-1/2“ x 86-1/4”
Door & Frame Size: 3’0” x 7’0” Rough Opening Size: 40-1/2” x 86-1/4”
Door & Frame Size: 3’4” x 7’0” Rough Opening Size: 44-1/2“ x 86-1/4”
Door & Frame Size: 3’6” x 7’0” Rough Opening Size: 46-1/2“ x 86-1/4”
Door & Frame Size: 3’8” x 7’0” Rough Opening Size: 48-1/2“ x 86-1/4”
Door & Frame Size: 4’0” x 7’0” Rough Opening Size: 52-1/2“ x 86-1/4”
Door & Frame Size: 3’0” x 8’0” Rough Opening Size: 40-1/2” x 98-1/4”
Door & Frame Size: 4’0” x 8’0” Rough Opening Size: 52-1/2” x 98-1/4”
Door & Frame Size: 6’0” x 6’8” Rough Opening Size: (Double Doors) 76-1/2” x 82-1/4”
Door & Frame Size: 6’0” x 7’0” Rough Opening Size: (Double Doors) 76-1/2” x 86-1/4”