Key Components to Reading Door Sizes

• Format: Sizes are typically written as

  (Width x Height).

• Jargon: "3068" means a 3'0" (36-inch) wide, 6'8" (80-inch) high door.

Measuring Guide

1. Slab Size: Measure the width and height of the actual door panel. A "3/0" door is 36 inches wide, but often measures 35-3/4 (AKA Beveled *)

   for clearance.

2. Rough Opening (RO): Measure the stud-to-stud opening in the wall, which should be about 2” wider and 2”higher than the door itself to allow for the frame.

3. Jamb Depth: Measure the thickness of the wall, including drywall. A standard

   wall uses a 4-9/16 jamb. (may very wall to wall)

Example Conversions

• 2/0 x 6/8: 24" x 80"

• 2/6 x 6/8: 30" x 80"

• 2/8 x 6/8: 32" x 80"

• 3/0 x 6/8: 36" x 80"

• 3/0 x 7/0: 36" x 84"

• 3/0 x 8/0: 36" x 96"

(Beveled doors)

Beveled doors include an angled cut on the side of the door. This cut is usually 2 to 3 degrees and is done down the entire height of the door’s lock side but may be on both sides. Doors with a square edge can be beveled in the field or doing the pre-hanging process. Some doors however are manufacturered pre-fit and beveled.