Standard Interior Door Sizes

What is a standard Interior door size? Standard door sizes are a common door that applies to most homes built in: New and old construction style homes. You will find that big box stores such as: Home depot & Lowe’s carry all standard types of doors. Standard interior doors come in Vinyl, Wood, Steel, Aluminum, and fiberglass materials.

To understand this standard Interior door chart:

  • Pre-hung doors, are doors that are already set in a door jamb and are ready to be installed. They also have trim moldings attached to the door jamb. Be sure that you know which direction you want your door to swing. On most Prehung doors, it will say the standard interior door size as well as which direction it will swing – either right hand swing, or left hand swing.
  • Bi-fold doors – are just as they sound. They are perfect for linen closest.
  • Pocket doors – Pocket doors are the perfect option for a tight space where you don’t have the room to open and close a door. Pocket doors open by sliding your door into a hidden pocket inside your wall.

Pre-hung doors
Bi-fold doors
Pocket doors
Width (W)
Height (H)
Single door (W)
Double door (W)
Width (W)
1′-6″ (18″W)
6′-8″ (80″H)
1′-6″ (18″W)
2 x 1′-6″ (36″W)
2′-0″ (24″W)
1′-8″ (20″W)
7′-0″ (84″H)
1′-10″ (22″W)
2 x 1′-10″ (44″W)
2′-2″ (26″W)
1′-10″ (22″W)
8′-0″ (96″H)
2′-0″ (24″W)
2 x 2′-0″ (48″W)
2′-4″ (28″W)
2′-0″ (24″W)
2′-4″ (28″W)
2 x 2′-4″ (56″W)
2′-6″ (30″W)
2′-2″ (26″W)
2′-6″ (30″W)
2 x 2′-6″ (60″W)
2′-8″ (32″W)
2′-4″ (28″W)
2′-8″ (32″W)
2 x 2′-8″ (64″W)
3′-0″ (36″W)
2′-6″ (30″W)
3′-0″ (36″W)
2 x 3′-0″ (72″W)
4′-0″ (48″W)
2′-8″ (32″W)
2′-10″ (34″W)
3′-0″ (36″W)


How to measure your existing standard interior door size

  • To measure your existing door, you need to take a measuring tape and measure from the bottom of the door to the top of the door – Most common doors measure: 6’8″. Then you need to measure the width, most common width are 2’6″.
  • Next, you need to determine which direction the door opens – in/out, left/right swings.
  • Also, measure the door jamb to know whether or not your home is existing or new construction type of door.

Custom Door Sizes

  • If for some reason, your existing interior door isn’t a standard door size – don’t worry. Custom doors can be made to match any size door opening. Although, custom doors do cost more money. On average, you can expect to pay roughly 20-25% percent more for a custom door.

As a home improvement contractor, the majority of doors I replace are standard interior size doors. When replacing your doors, take a picture of the door profile to see if your local supply house can match your door trim and profile, as well as the dimensions of the door. Be sure to get multiple quotes from various suppliers to get the best deal possible. I normally can save 20% percent by presenting quotes from other suppliers and you can too.

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