General Door Design Standards – Updated 08/14/2017
Standard Unit Dimensions
Interior Units: Height = 7/8” Undercut + Door Height + 1/8” Gap + Header Thickness = Overall frame height. Standard = D.H. + 1-3/4”
Width: Single Doors – Jamb Thickness X 2 + Door Width + 1/16” Gap = Overall frame width. Standard = D.W. + 1-9/16”
Double doors without a T-astragal add 1/8” gap between the doors. Standard = D.W. + 1-11/16”
Double door with a T-astragal add 3/4” to the unit width. Standard = D.W. + 2-5/16”
Interior Units – Double Rabbet Jamb: Height = 7/8” Undercut + Door Height + 1/8” Gap + Header Thickness (-7/16” rabbet depth) = Overall frame height. Standard = D.H. + 1-11/16”.
Width: Jamb Thickness (- rabbet depth) x 2 + Door Width + 1/16” Gap = Overall frame width. Standard = D.W. + 1-7/16”
Double Doors without a T-astragal add 1/8” gap between the doors. Standard = D.W. + 1-9/16”
Double Doors with a T-astragal add 3/4” to the unit width. Standard = D.W. + 2-5/16”
Exterior Units : Height
ADA Sill : 1/2” Sill + 3/8” Sweep + Door Height + 1/8” Gap + Header (-7/16” rabbet depth) = Overall Frame Height. Standard = D.H. + 1-11/16”
Bumper Sill : 1” Sill (door overlaps sill) + Door Height + 1/8” Gap + Header (-7/16” rabbet depth) = Overall Frame Height. Standard = D.H. + 1-13/16”
Adjustable Sill : 1-3/8” Sill + 3/8” Sweep + Door Height + 1/8” Gap + Header (-7/16” rabbet depth) = Overall Frame Height. Standard = D.H. + 2-9/16”
Width: Jamb Thickness (- rabbet depth) x 2 + Door Width + 1/16” Gap = Overall frame width. Standard = D.W. + 1-7/16”
Double Doors without a T-astragal add 1/8” gap between the doors. Standard = D.W. + 1-1/2”
Double Doors with a T-astragal add 7/8” to the unit width. Standard = D.W. + 2-5/16”
Doors with standard mullion posts – add 1-1/2” for each mullion post to the overall door unit width + width of sidelites.
Brick Mould – Brick Mould extends 1-5/16” beyond the back side if the jamb. Add 2.625” for width and 1.3125 for height.
Overlap of various parts for pre-hung units:
Interior Doors: Square Doors –
Stile overlap to jamb leg = -0.0.3125”,
Top rail to header = -0.125”.
Double Square Door
Bottom rail – stays the same as a standard single door,
No “T” astragal / Ball Catches – Overlap for center stiles = -0.0625” each stile (creates a 1/8” gap between the slabs.)
With exterior “T” astragal – Overlap for center stiles = -0.375” each stile (creates a 3/4” gap between the slabs)
Single True Half Round and Elliptical Top Units :
The gap around the unit must be equal. Stile and Top Rail overlap to jambs and header = -0.125”.
Exterior Doors: Single Square Doors – Standard overlaps –
Bottom rail to adjustable sill = -0.375”,
Bottom rail to ADA sill = -0.375”,
Bottom Rail To Bumper sill = +0.375”,
Stile to jamb leg = 0.40625”,
Top rail to header = 0.3125”.
Single Square door with 3 point lock system – Standard overlaps –
Bottom rail and top rail – stays the same as a standard single door,
Stile to jamb leg = 0.3125”,
Double Square Door – Standard overlaps –
Bottom rail and top rail – stays the same as a standard single door,
Stile to jamb leg = 0.40625”,
No “T” astragal – Overlap for center stiles = -0.0625” each stile (creates a 1/8” gap between the slabs.)
With exterior “T” astragal – Overlap for center stiles = -0.4375” each stile (creates a 7/8” gap between the slabs)
Exterior Door With Sidelite – Standard Adjustable Sill –
Sidelite bottom rail to sill overlap = 0.000” – Increase height of bottom rail by 3/8”. Profile line to match door bottom rail.
Sidelite stile to jamb leg overlap = 0.4375”
Sidelite stile to mullion overlap = 0.500”
Sidelite top rail to header overlap = 0.4375”. Increase height of top rail by 1/8”. Profile line to match door top rail.
Please check the overall height of the sidelite – Height is to be only 1/2” taller than door slab height.
Door Slab – Bottom and top rail use standard single door overlaps.
Door stile to mullion post overlap = 0.46875”.
Brick Mould – overlaps the outside of the jamb layer – set overlap to 1.3125”.
Stile Widths For Standard Doors
1′ 0″ – 1′ 3″ 3″
1′ 4″ – 3′ 0″ 5″
3′ 1″ – 3′ 6″ 6″
3’ 7’’ – 4’ + 7”
Top rail = stile width (See rule above)
Bottom and lock rail 8 ½’’
Mid Rail 5″
Mullions 5″
Rustic Series Doors – Bottom Rail is 5” wide.
Full lite doors – Same standards as other doors
Panel Grain Direction – Vertical grain direction is typical. (panels under a 24” center rail are vertical grain)
Exceptions : 5 or more equal panel door (no center mullions) have horizontal grain direction.
Watch for customer specifications for a horizontal grain direction.
TDL – Standard is 1-1/2” Wide / SDL – Standard is 7/8” Wide (Square or Eased Edge)
Square doors, equal spacing from bottom to top and side to side
Standard arch-top door, equal spacing from bottom to center of top rail
Common arch-top door, equal spacing from bottom to tallest point of top rail
Half-round door, equal spacing from bottom to center of top rail
Sidelites
All sidelites we install in a frame with an adjustable sill need to be ½” taller than the door. Add the 3/8” to the bottom rail. Top rail is to be 1/8” taller than the door top rail. (Please use a 0” overlap on the sill – GM908 retainer will hide a gap.)
All sidelites we install in a frame with a low profile sill (ADA) need to be ½” taller than the door. Add the 3/8” to the bottom rail. Top rail is to be 1/8” taller than the door top rail. (Please use a 0” overlap on the sill – GM908 retainer will hide a gap.)
All sidelites we install in a frame with an outswing sill need to be the same height as the door. Top rail is to be 1/8” taller than the door top rail. (Please use a 0.250” overlap on the sill – GM908 retainer will hide a gap.) The bottom rail will be 0.125” shorter than the bottom rail on the door to keep the sticking line even across the unit.
General Notes
3 panel doors w/ 2 tall lower panels & 1 upper panel: door is drawn as 3 panels tall, equally divided, and then the lower center rail deleted and replaced with a mullion.
6 & 4 panel doors default to 3 & 2 panels once they are less than 24’’
Our standard v-groove spacing is 3” on center. Unless of course otherwise specified.
Glass Thickness Notes
½” Insulated Glass has a maximum total square footage of 12 sq ft. Maximum height is 74”.
5/8” Insulated Glass is minimum thickness for caming or internal SDL bars.
Caming color options are Black (Patina), Silver (Zinc), and Gold (Brass).
Internal SDL bars are 5/8” wide and have color options of Bronze and White.
Common arch door radius – Use unit width as the inside (sticking profile edge ) radius of the top rail.
True common arch door radius – If slab only – use the unit width as the radius of the outside of the top rail.
If pre-hung – use the overall unit width (outside of jamb to outside of jamb) as the radius of the outside of the header.
Arched Lock Rail Doors – Lock rail should be 36’’ from bottom of door to center of quadrant points.
Lock rail should be 6 ½’’ wide with sticking. (Common Arch Lock Rail may need to have a 30” center line)
Cathedral Tops – Rail length * .4 is the radius for both center and side arcs. Cathedral tops have 2″ rise.
Elliptical Tops – Inside profile – 1-1/2” is minimum radius. Jambs – 6” is minimum inside radius.
True Plank Doors – Try to keep plank widths between 4’’ & 5’’ (Unless specified by the customer) – Designed as a stile and rail core width an Extira panel. – MAX 6″
Dentil Shelves – Should be 1-1/4” Thick x 2-3/4” Wide, 3” Longer than rail length. (1-1/2” over each stile)
Blocks should be 1-1/2” square.
Dutch Door Shelves – Standard is to set on top of the lower door half. Thickness is 1”. Width is door thickness + 4”. Corbels – standard is 3 corbels. 1” thick x 3-1/4” x 3-1/4”. Drawing can be seen at workgroup\ standard operating procedures\ customer service\door specs and details \ shelf_dutch door\ dutchdoor_shelfdetail.
Speak Easy Window – Our standard is for fixed glass. The outside of the GM550 is 8” wide x 10” tall. This will give a viewable glass (daylight) of 6” wide x 8” tall. Speak easy doors and grills are available options. Wood opening 7” x 9”. Glass size 6-7/8” x 8-7/8”.
Bi-fold and B-Pass Doors
These doors will be 3-5/8” shorter than the outside height of the jamb.
Jamb height – 3/4” (header thickness) – 1/8” – 1-7/8” (track) – 7/8” (under cut)
Door Width – Slab Width x number of slabs (2 or 4) + 1/8” (gap between jamb and slabs) + 1/4” between each slab.
Pocket Doors are the same as other doors.
Doors with a diagonal brace:
- Standard Series Door
- Rustic Series Door
