A white 6 panel door with an X and Y axis that touches each side of the door

STEPS 1 & 2

There is no ‘industry standard’ for door sizing, so follow these steps carefully. Measuring your door and determining your door handing is very important to ensure the best fit for your opening. For best results, have a professional measure your opening and get it installed.

STEP 1.

Measure the width of your existing door slab.

This is the edge of one side of the door slab to the edge of the other side of the door slab. (X)

STEP 2.

Measure the height of your existing door slab.

This is the top edge of the door slab to the bottom edge of the door slab. Do not include the sweep on the bottom of the door. (Y)

STEP 3.

Measure the jamb depth of your existing door.

This is the inside edge of the door jamb to the outside edge of the door jamb (area where hinges are). Do not include any trim / moulding in this measurement.

STEP 4.

Determine the handing of your existing door

(See next section for visual and double door options).

A). All handing must be done from the exterior of the door. Looking at your door from the outside, your door swings:

A or B – Into the house (inswing)

C or D – Out of the house (outswing)

B). Looking at your door from the outside, your door knob is:

B or D – On the left side of the door

A or C – On the right side of the door

C). Select the Letter below to determine the proper handing of your door.

B – Right-Hand Inswing

A – Left-Hand Inswing

D – Left-Hand Outswing

C – Right-Hand Outswing

(See below for visual and more options)

STEP 5.

Final calculations of your existing door.

To find the estimated size of your existing unit, use the worksheet below to do your calculations.

Width For Inswing Units For Outswing Units
MEASUREMENT X ✎ X= ✎ X=
ADD FOR JAMBS      +       1.75 (1 3/4)"      +       1.75 (1 3/4)"
TOTAL UNIT WIDTH       =                          "       =                          "
Height * For Inswing Units For Outswing Units
MEASUREMENT Y ✎ Y= ✎ Y=
ADD FOR HEAD & SILL
DOOR BOTTOM I.S.
     +       2.75 (2 3/4)"      +       1.875 (1 7/8)"
TOTAL UNIT HEIGHT        =                          "        =                          "
Width For Inswing Units For Outswing Units
MEASUREMENT X ✎ X= ✎ X=
ADD FOR JAMBS    +    1.75(1 3/4)"    +    1.75(1 3/4)"
TOTAL UNIT WIDTH    =              "    =              "
Height * For Inswing Units For Outswing Units
MEASUREMENT Y ✎ Y= ✎ Y=
ADD FOR HEAD & SILL DOOR BOTTOM I.S. +  2.75 (2 3/4)" +  1.875 (1 7/8)"
TOTAL UNIT HEIGHT    =          "    =          "

NOTE: THIS CHART IS FOR CALCULATIONS OF A SINGLE UNIT ONLY

* ADJUSTABLE SILL BUMBER OR 1/2" LOW PROFILE (ADA) SILL

Find Your Door Handing

Inswing

Door Inswing with the letter A and the words 'Left Hand Inswing Exterior'
Double Door Inswing with the letter E and the words 'Left Hand Inswing Exterior'

Inswing

Door Inswing with the letter B and the words 'Right Hand Inswing Exterior'
Double Door Inswing with the letter F and the words 'Right Hand Inswing Exterior'

Outswing

Door Outswing with the letter C and the words 'Right Hand Outswing Exterior'
Double Door Outswing with the letter G and the words 'Right Hand Outswing Exterior'

Outswing

Door Outswing with the letter D and the words 'Left Hand Outswing Exterior'
Double Door Outswing with the letter H and the words 'Left Hand Outswing Exterior'

FOR DOUBLE DOOR UNITS OR SIDELITE UNITS ASK YOUR DEALER

PREHUNG NET UNIT MEASUREMENTS

NET UNIT WIDTHS

Door Size Net Unit Width Add 1-Each Fixed 10" Sideltes Add 2-Each Fixed 10" Sidelites Add 1-Each Fixed 12" Sidelites Add 2-Each Fixed 12" Sidelites Add 1-Each Fixed 14" Sidelites
2/0 x 6/8 25½" 36⅞" 48¼" 38⅜" 51¼" 40⅜"
2/4 x 6/8 29½" 40⅞" 52¼" 42⅜" 55¼" 44⅜"
2/6 x 6/8 31½" 42⅞" 54¼" 44⅜" 57¼" 46⅜"
2/8 x 6/8 33½" 44⅞" 56¼" 46⅜" 59¼" 48⅜"
2/10 x 6/8 35½" 46⅞" 58¼" 48⅜" 61¼" 50⅜"
3/0 x 6/8 37½" 48⅞" 60¼" 50⅜" 63¼" 52⅜"
3/6 x 6/8 43½" 54⅞" 66¼" 56⅜" 69¼" 58⅜"
4/0 x 6/8 49½" 60⅞" 72¼" 62⅜" 75¼" 64⅜"
4/0 x 6/8 Double 50" 61⅜" 72¾" 62⅞" 75¾" 64⅞"
4/8 x 6/8 Double 58" 69⅜" 80¾" 70⅞" 83¾" 72⅞"
5/0 x 6/8 Double 62" 73⅜" 84¾" 74⅞" 87¾" 76⅞
5/4 x 6/8 Double 66" 77⅜" 88¾" 78⅞" 91¾" 80⅞"
5/8 x 6/8 Double 70" 81⅜" 92¾" 82⅞" 95¾" 84⅞"
6/0 x 6/8 Double 74" 85⅜" 96¾" 86⅞" 99¾" 88⅞"
2/6 x 7/0 31½" 44⅜" 57¼" 46⅜"
2/8 x 7/0 33½" 46⅜" 59¼" 48⅜"
3/0 x 7/0 37½" 50⅜" 63¼" 52⅜"
2/6 x 8/0 31½" *44⅞" *58¼" *46⅞"
2/8 x 8/0 33½" *46⅞" *60¼" *48⅞"
3/0 x 8/0 37½" *50⅞" *64¼" *52⅞"

NET UNIT HEIGHTS

Door Size Add 2-Each Fixed 14" Sidelites Inswing Net Unit Height Outswing Bumper Net Unit Height
2/0 x 6/8 55¼" 81¾" 80⅞"
2/4 x 6/8 59¼" 81¾" 80⅞"
2/6 x 6/8 61¼" 81¾" 80⅞"
2/8 x 6/8/th> 63¼" 81¾" 80⅞"
2/10 x 6/8 65¼" 81¾" 80⅞"
3/0 x 6/8 67¼" 81¾" 80⅞"
3/6 x 6/8 73¼" 81¾" 80⅞"
4/0 x 6/8 79¼" 81¾" 80⅞"
4/0 x 6/8 Double 79¾" 81¾" 80⅞"
4/8 x 6/8 Double 87¾" 81¾" 80⅞"
5/0 x 6/8 Double 91¾" 81¾" 80⅞"
5/4 x 6/8 Double 95¾" 81¾" 80⅞"
5/8 x 6/8 Double 99¾" 81¾" 80⅞"
6/0 x 6/8 Double 103¾" 81¾" 80⅞"
2/6 x 7/0 61¼" 85¾" 84⅞"
2/8 x 7/0 63¼" 85¾" 84⅞"
3/0 x 7/0 67¼" 85¾" 84⅞"
2/6 x 8/0 *62¼" 97¾" 96⅞"
2/8 x 8/0 *64¼" 97¾" 96⅞"
3/0 x 8/0 *68¼" 97¾" 96⅞"

ALL SPECIFICATIONS ARE NET FRAME SIZES!

Net frame height with Flat Oak Sill for 6'8" doors 81-3/4" I.S. & 81-9/16" O.S. for 8'0" doors 97-3/4" I.S. & 97-9/16" O.S.

NOTE:

For 1/2" Low Profile (ADA) Sill Deduct ⅞" From Inswing Height (Applies to Inswing or Outswing Units).

6/8 & 7/0 Unit Dimensions with Sidelites Includes 1" x 2" Mull Post. *8/0 Units includes 1½" x 2½" Fat Boy Mull Post

6'8" Door units with **operable sidelites add 3/4" per sidelite in width for Fat Boy Mull Post and (2) 1/8" gaps at hinge & strike.

8'0" Door units with **operable sidelites add 1-7/16" per sidelite in width for back-to-back Mull Post, 1-3/16" spacer and (2) 1/8" gaps at hinge & strike.

** All Inswing or All Outswing units (Inswing Door / Inswing Sidelite or Outswing Door / Outswing Sidelites)