ROUGH OPENING CHART
Recommended Rough Opening Sizes for Commercial Metal Door Frames

HOLLOW METAL FRAMES THAT WRAP WALL
(Typically Knock Down Frames)

HOLLOW METAL FRAMES THAT BUTT WALL
(Typically Block or Exterior Wall)
Nominal Door Size
2’0” x 6’8”
2’4” x 6’8”
2’6” x 6’8”
2’8” x 6’8”
3’0” x 6’8”
3’4” x 6’8”
3’6” x 6’8”
3’8” x 6’8”
4’0” x 6’8”
2’0” x 7’0”
2’4” x 7’0”
2’6” x 7’0”
2’8” x 7’0”
3’0” x 7’0”
3’4” x 7’0”
3’6” x 7’0”
3’8” x 7’0”
4’0” x 7’0”
3’0” x 8’0”
4’0” x 8’0”
6’0” x 6’8” Pair
6’0” x 7’0” Pair
Recommdended Opening
26“ x 81”
30“ x 81”
32“ x 81”
34“ x 81”
38“ x 81”
42“ x 81”
44“ x 81”
46“ x 81”
50“ x 81”
26“ x 85”
30“ x 85”
32“ x 85”
34“ x 85”
38“ x 85”
42“ x 85”
44“ x 85”
46“ x 85”
50“ x 85”
38” x 97”
50” x 97”
74” x 81”
74” x 85”
Nominal Door Size
2’0” x 6’8”
2’4” x 6’8”
2’6” x 6’8”
2’8” x 6’8”
2’10“ x 6’8”
3’0” x 6’8”
3’4” x 6’8”
3’6” x 6’8”
3’8” x 6’8”
4’0” x 6’8”
2’0” x 7’0”
2’4” x 7’0”
2’6” x 7’0”
2’8” x 7’0”
2’10“ x 7’0”
3’0” x 7’0”
3’4” x 7’0”
3’6” x 7’0”
3’8” x 7’0”
4’0” x 7’0”
3’0” x 8’0”
4’0” x 8’0”
6’0” x 6’8” Pair
6’0” x 7’0” Pair
Recommdended Opening
28-1/2“ x 82-1/4”
32-1/2“ x 82-1/4”
34-1/2“ x 82-1/4”
36-1/2“ x 82-1/4”
38-1/2“ x 82-1/4”
40-1/2“ x 82-1/4”
44-1/2“ x 82-1/4”
46-1/2“ x 82-1/4”
48-1/2“ x 82-1/4”
52-1/2“ x 82-1/4”
28-1/2“ x 86-1/4”
32-1/2“ x 86-1/4”
34-1/2“ x 86-1/4”
36-1/2“ x 86-1/4”
38-1/2“ x 86-1/4”
40-1/2” x 86-1/4”
44-1/2“ x 86-1/4”
46-1/2“ x 86-1/4”
48-1/2“ x 86-1/4”
52-1/2“ x 86-1/4”
40-1/2” x 98-1/4”
52-1/2” x 98-1/4”
76-1/2” x 82-1/4”
76-1/2” x 86-1/4”

HOLLOW METAL FRAMES THAT BUTT WALL
(Typically Block or Exterior Wall)
Nominal Door Size
2’0” x 6’8”
2’4” x 6’8”
2’6” x 6’8”
2’8” x 6’8”
2’10“ x 6’8”
3’0” x 6’8”
3’4” x 6’8”
3’6” x 6’8”
3’8” x 6’8”
4’0” x 6’8”
2’0” x 7’0”
2’4” x 7’0”
2’6” x 7’0”
2’8” x 7’0”
2’10“ x 7’0”
3’0” x 7’0”
3’4” x 7’0”
3’6” x 7’0”
3’8” x 7’0”
4’0” x 7’0”
3’0” x 8’0”
4’0” x 8’0”
6’0” x 6’8” Pair
6’0” x 7’0” Pair
Recommdended Opening
28-1/2“ x 82-1/4”
32-1/2“ x 82-1/4”
34-1/2“ x 82-1/4”
36-1/2“ x 82-1/4”
38-1/2“ x 82-1/4”
40-1/2“ x 82-1/4”
44-1/2“ x 82-1/4”
46-1/2“ x 82-1/4”
48-1/2“ x 82-1/4”
52-1/2“ x 82-1/4”
28-1/2“ x 86-1/4”
32-1/2“ x 86-1/4”
34-1/2“ x 86-1/4”
36-1/2“ x 86-1/4”
38-1/2“ x 86-1/4”
40-1/2” x 86-1/4”
44-1/2“ x 86-1/4”
46-1/2“ x 86-1/4”
48-1/2“ x 86-1/4”
52-1/2“ x 86-1/4”
40-1/2” x 98-1/4”
52-1/2” x 98-1/4”
76-1/2” x 82-1/4”
76-1/2” x 86-1/4”