Rough Openings Guide

Sizes are approximate and may differ with manufacturer

Exterior Doors

Inswing Door System - Standard Aluminum Sill

  • Oak & Mahogany Sill - ADD 1/2” to Height of all dimensions
  • Public Access Aluminum Sill - Deduct 1” from Height of all dimensions
Size Rough Opening Unit Dimension No Casing Unit Dimension w/
Brickmould
Unit Dimension w/ 
1-1/6" x 3-1/2" Flat Casing
2-6 x 6-8   32-1/2 x 82-1/2 31-3/8 x 81-3/4 34 x 83 37 x 84-1/2
2-8 x 6-8 34-1/2 x 82-1/2 33-3/8 x 81-3/4 36 x 83 39 x 84-1/2
3-0 x 6-8 38-1/2 x 82-1/2 37-3/8 x 81-34 40 x 83 43 x 84-1/2
5-0 x 6-8 63 x 82-1/2 61-7/8 x 81-3/4 64-1/2 x 83 67-1/2 x 84-1/2
5-4 x 6-8 67 x 82-1/2 65-7/8 x 81-3/4 68-1/2 x 83 71-1/2 x 84-1/2
6-0 x 6-8 75 x 82-1/2 73-7/8 x 81-3/4 76 1/2 x 83 79-1/2 x 84-1/2

For 8'0" Height Units - add 16" to all height dimensions shown

Outswing Door System - Standard Aluminum Sill or Public Access Sill

  • Oak & Mahogany Sill - ADD 3/4" to Height of all dimensions
  • Public Access Aluminum Sill - Use Table AS IS
Size Rough Opening Unit Dimension No Casing Unit Dimension w/
Brickmould
Unit Dimension w/
1-1/16" x 3-1/2" Flat Casing
2-6 x 6-8 32-1/2 x 81-1/2 31-3/8 x 80-7/8 34-1/2 x 82-3/8 37-1/2 x 83-7/8
2-8 x 6-8 34-1/2 x 81-1/2 33-3/8 x 80-7/8 36 -1/2 x 82-3/8 39-1/2 x 83-7/8
3-0 x 6-8 38-1/2 x 81-1/2 37-3/8 x 80-7/8 40-1/2 x 82-3/8 43-1/2 x 83-7/8
5-0 x 6-8 63 x 81-1/2 61-7/8 x 80-7/8 65 x 82-3/8 68 x 83-7/8
5-4 x 6-8 67 x 81-1/2 65-7/8 x 80-7/8 69 x 82-3/8 72 x 83-7/8
6-0 x 6-8 75 x 81-1/2 73-7/8 x 80-7/8 77 x 82-3/8 80 x 83-7/8

For 8'0" Height Units - add 16" to all height dimensions shown

Door & Sidelight Unit - Inswing Door System - Standard Aluminum Sill

Mull Post or Jamb to Jamb - Same Width Dimensions

  • Oak & Mahogany Sill - ADD 1/2” to Height of all dimensions
  • Public Access Aluminum Sill - Deduct 1” from Height of all dimensions
Size Rough Opening Unit Dimension No Casing Unit Dimension w/ Brickmould Unit Dimension with 1-1/6" x 3-1/2" Flat Casing

3-0 x 6-8 w/ (1) 10” Sdlt

50 x 82 1/2 49 x 81 3/4 51 1/2 x 83 54 1/2 x 84 1/2
3-0 x 6-8 w/ (1) 12” Sdlt 52 x 82 1/2 51 x 81 3/4 53 1/2 x 83  56 1/2 x 84 1/2
3-0 x 6-8 w/ (1) 14” Sdlt 54 x 82 1/2 53 x 81 3/4 55 1/2 x 83  58 1/2 x 84 1/2
3-0 x 6-8 w/ (2) 10” Sdlts 61 1/2 x 82 1/2 60 5/8 x 81 3/4 63 1/8 x 83 66 1/8 x 84 1/2
3-0 x 6-8 w/ (2) 12” Sdlts 65 1/2 x 82 1/2 64 5/8 x 81 3/4 67 1/8 x 83 70 1/8 x 84 1/2
3-0 x 6-8 w/ (2) 14” Sdlts 69 1/2 x 82 1/2 68 5/8 x 81 3/4 71 1/8 x 83 74 1/8 x 84 1/2


Interior Doors

Single Door

Size w/ Split Jamb w/ Flat Board Jamb w/ 5/4 Flat Board Jamb w/ Solid Rabbeted Jamb
2-6 x 6-8 32-1/2 x 82-1/2 32-1/4 x 82-1/2 33-1/4 x 82-7/8 32-1/2 x 82-1/2
2-8 x 6-8 34-1/2 x 82-1/2 34-1/2 x 82-1/2 35-1/4 x 82-7/8 34-1/2 x 82-1/2
3-0 x 6-8 38-1/2 x 82-1/2 36-1/4 x 82-1/2 39-1/4 x 82-7/8 36-1/2 x 82-1/2
5-0 x 6-8 62-1/2 x 82-1/2 62-1/4 x 82-1/2 63-1/4 x 82-7/8 62-1/2 x 82-1/2
5-4 x 6-8 66-1/2 x 82-1/2 66-1/4 x 82-1/2 67-1/4 x 82-7/8 66-1/2 x 82-1/2
6-0 x 6-8 74-1/2 x 82-1/2 74-1/4 x 82-1/2 75-1/4 x 82-7/8 74-1/2 x 82-1/2

Double Doors

Size With Astragal No Astragal
2-6 x 6-8 33-1/2 x 82-1/2 32-3/4 x 82-1/2
2-8 x 6-8 35-1/2 x 82-1/2 34-3/4 x 82-1/2
3-0 x 6-8 39-1/2 x 82-1/2 38-3/4 x 82-1/2
5-0 x 6-8 63-1/2 x 82-1/2 62-3/4 x 82-1/2
5-4 x 6-8 67-1/2 x 82-1/2 66-3/4 x 82-1/2
6-0 x 6-8  75-1/2 x 82-1/2 74-3/4 x 82-1/2

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