Rough Openings

We always provide this rough opening guide with our submittals. But sometimes contractors need this information sooner to start the framing. Let us know if any questions.

Frame Type Example
ALUMINUM
ALUMINUM FRAME:  SINGLE, PAIR or CASED OPENING
Add 1-1/2" to the width and 3/4" to the height of frame.		 (3'- 0" X 7'- 0" Door)
R.O. = 36" + 1-1/2" X 84" + 3/4" = 37-1/2" X 84-3/4"
ALUMINUM FRAME WITH SIDELITE OPENING
Add 1-1/2" to the width plus 1-3/4" for each vertical mullion,including
the strike mullion. Add 3/4" to the height.		 Example (3'- 0" X 7'- 0" Door with 2'- 0" Sidelite)
Width = 36" + 1-1/2" + 1-3/4" (strike mullion) + 24" = 63-1/4"
Height = 84" + 3/4" = 84-3/4"
R.O. = 63-1/4" X 84-3/4"
ALUMINUM BORROWED LITE (ELEVATED) OPENING
Add 1-1/2" to the width and 2" to the height.		 Example (4'- 0" X 4'- 0")
R.O. = 48" + 1-1/2" X 48" + 2" = 49-1/2" X 50"
ALUMINUM BORROWED LITE (FULL HEIGHT) OPENING
Add 1-1/2" to the width and 1" to the height.		 Example (2'- 0" X 8'- 0")
R.O. = 24" + 1-1/2" X 96" + 1" = 24-1/2" X 97"
STEEL STUD FRAMING FOR ALUMINUM DOOR S/L-B/L (side lite-borrowed lite) Frames:
Invert end stud at strike jamb; Invert end stud at 4 sides for
borrowed lites and 3 sides for sidelites.
HOLLOW METAL
KD HOLLOW METAL FRAME:  SINGLE, PAIR or CASED OPENING
Add 2" to the width and 1" to the height.		 Example (3'- 0" X 7'- 0" Door)
R.O. = 36" + 2" X 84" + 1" = 38" X 85"
WELDED HOLLOW METAL FRAME:  SINGLE, PAIR or CASED OPENING
Add 4-1/2" to the width and 2-1/4" to the height.		 Example (3'- 0" X 7'- 0" Door)
R.O. = 36" + 4-1/2" X 84" + 2-1/4" = 40-1/2" X 86-1/4"
RITE DOORS, SINGLE OR PAIR OPENING
Same as WELDED HOLLOW METAL FRAME
WELDED HOLLOW METAL FRAME WITH SIDELITE OPENING
Add 4-1/2" to the width plus 2" mullion. Add 2-1/4" to the height.		 Example (3'- 0" X 7'- 0" Door with 2'- 0" Sidelite)
R.O. = 36" + 2" + 24" + 4-1/2" X 84" + 2-1/4" = 66-1/2" X 86-1/4"
WELDED HOLLOW METAL BORROWED LITE OPENING
Add 4-1/2" to the width and 4-1/2" to the height.		 Example (4'- 0" X 4'- 0")
R.O. = 48" + 4-1/2" X 48" + 4-1/2" = 52-1/2" X 52-1/2"
WELDED HOLLOW METAL POCKET DOOR FRAME OPENING
The width is to be calculated by door width X 2 + 2-1/4".
Add 3-1/4" to the door height.		 Example (3'- 0" X 7'- 0" Door)
R.O. = 36" + 36" + 2-1/4" X 84" + 3-1/4" = 74-1/4" X 87-1/4"
WOOD
WOOD FRAME:  SINGLE, PAIR or CASED OPENING
Add 2" to the width and 1" to the height.		 Example (3'- 0" X 7'- 0" Door)
R.O. = 36" + 2" X 84" + 1" = 38" X 85"
TIMELY FRAMES
Add 1-1/4" to the width and 1" to the height.		 Example (3'- 0" X 7'- 0" Door)
R.O. = 36" + 1-1/4" X 84" + 1" = 37-1/4" X 85"
POCKET DOOR FRAME OPENING
The width is to be calculated by door width X 2 + 2.
Add 4" to the height.		 Example (3'- 0" X 7'- 0" Door)
R.O. = 36" + 36" + 2" X 84" + 4" = 74" X 88"
BI-PASS DOOR FRAME OPENING - WOOD
The width is to be calculated by door width x 2 + 1".
Add 2 1/2" to the height. 		Example: (3'- 0" X 7'- 0" Door)
R.O. = 36" + 36" - 1" for overlap + 2" for wood jamb = 73" Width
R.O. = 84 + 2 1/2 = 86 1/2" Height
BI-PASS DOOR FRAME OPENING - SHEETROCK
The width is to be calculated by door width x 2 + 1/4".
Add 2" to the height
 Example: (3'- 0" X 7'- 0" Door)
R.O. = 36" + 36" - 1" for overlap + 1 1/4" sheetrock (5/8" both sides) = 72 1/4" Width
R.O. = 84 + 2 = 86" Height
STEEL STUD FRAMING FOR WOOD DOOR-S/L-B/L FRAMES:
Wood Bucks are required at 3 sides (Head and Jamb Legs)
(Head and Jamb Legs)