Standard Door Sizes
Most interior doors are 80 in tall and 24–36 in wide, and the standard front door is 36 × 80 in. Type a door code like 2868 to see its size and rough opening.
Reference table
Standard Door Size Chart: Interior and Outside Doors
Common door sizes, with the four-digit code the trade uses for each. Widths are the door slab, not the opening.
| Door code | Size | Metric | Common use | Good to know |
|---|---|---|---|---|
| 2068 | 24 × 80 in | 61 × 203.2 cm | Closet | About 21⅝ in clear |
| 2468 | 28 × 80 in | 71.1 × 203.2 cm | Bathroom, closet | About 25⅝ in clear |
| 2668 | 30 × 80 in | 76.2 × 203.2 cm | Bedroom, bathroom | About 27⅝ in clear |
| 2868 | 32 × 80 in | 81.3 × 203.2 cm | Bedroom, bathroom | Standard interior door; about 29⅝ in clear |
| 3068 | 36 × 80 in | 91.4 × 203.2 cm | Front door | Standard outside door; about 33⅝ in clear |
| 3080 | 36 × 96 in | 91.4 × 243.8 cm | Taller front door | Rough opening 98–98½ in tall |
| 6068 | 72 × 80 in | 182.9 × 203.2 cm | Double entry, patio | A pair of 3-0 doors, or one patio unit |
Interior doors are 1⅜ in thick and outside doors 1¾ in. Clear width is an estimate: the door minus 2⅜ in for the open slab and its stop. Metric figures are conversions at 2.54 cm per inch.
Door Rough Opening Sizes by Door Type
The framed hole each kind of door needs. Where makers differ you see a range; the install sheet for your door decides.
| Door type | Rough opening rule | Example | Good to know |
|---|---|---|---|
| Interior prehung | Door + 2 in wide, + 2–2½ in tall | 2868 → 34 × 82–82½ in | Frame 33½ × 81½–82 in |
| Interior double / French | Both doors + 2 in wide, + 2–2½ in tall | 5068 → 62 × 82–82½ in | Two 2-6 doors |
| Exterior prehung | Door + 2¼–2½ in wide, + 2–2½ in tall | 3068 → 38¼–38½ × 82–82½ in | Frame 37½–37⅝ × 81½–82 in |
| Exterior double | Both doors + 2¾–3¼ in wide, + 2–2½ in tall | 6068 → 74¾–75¼ × 82–82½ in | Two 3-0 doors |
| Sliding patio | Sold by opening size: the code is the opening | 6068 → 72 × 80 in | Unit 71¼ × 79½ in |
| 2 × door + 1 in wide, door + 4½ in tall | 2868 → 65 × 84½ in | Needs clear wall beside the opening | |
| Barn | Door − 2 in wide, − 1 in tall (1 in overlap) | 3070 → 34 × 83 in | Largest opening it covers; track 72 in |
| Bifold | Nominal width; height + ¾ in (Masonite) | 3068 → 36 × 80¾ in | Panels 35½ × 79 in |
Sources: Masonite and Therma-Tru entry-door charts, JELD-WEN and door makers’ interior rules, MP Doors patio charts, Johnson Hardware pocket frames, Masonite bifold instructions and barn-door makers’ measuring guides.
Double Door and French Door Sizes
A double door’s code is the pair. Entry pairs are sold by door size; patio doors, French ones included, are often sold by opening size.
| Door | Size | Metric | Rough opening | Good to know |
|---|---|---|---|---|
| Interior French, 4068 | 48 × 80 in | 121.9 × 203.2 cm | 50 × 82–82½ in | Two 2-0 doors |
| Interior French, 5068 | 60 × 80 in | 152.4 × 203.2 cm | 62 × 82–82½ in | Two 2-6 doors |
| Interior French, 6068 | 72 × 80 in | 182.9 × 203.2 cm | 74 × 82–82½ in | Two 3-0 doors |
| Exterior double, 5468 | 64 × 80 in | 162.6 × 203.2 cm | 66¾–67¼ × 82–82½ in | Two 2-8 doors |
| Exterior double, 6068 | 72 × 80 in | 182.9 × 203.2 cm | 74¾–75¼ × 82–82½ in | Two 3-0 doors |
| Exterior double, 6080 | 72 × 96 in | 182.9 × 243.8 cm | 74¾–75¼ × 98–98½ in | 8 ft tall pair |
| Sliding patio, 5068 | 60 × 80 in | 152.4 × 203.2 cm | 60 × 80 in | Unit 59¼ × 79½ in |
| Sliding patio, 6068 | 72 × 80 in | 182.9 × 203.2 cm | 72 × 80 in | Unit 71¼ × 79½ in |
| French patio, 6068 | 72 × 80 in | 182.9 × 203.2 cm | 72 × 80 in | Hinged, but sold by opening |
Rough openings for entry pairs span the Masonite and Therma-Tru charts; patio sizes follow MP Doors and Therma-Tru. Check the chart for the exact unit you buy.
Decode the Code, Then Frame the Opening
Decode Any Door Code
A door code packs four numbers: feet and inches of width, then feet and inches of height. So 2868 is 2 ft 8 in by 6 ft 8 in, or 32 × 80 in. Type a code, a dash form like 2-10 x 6-8, or plain inches.
Decode a 2868 DoorFrame the Rough Opening, Not the Door
A prehung door needs room for its frame and shims. Interior units want the door + 2 in wide and + 2–2½ in tall. Exterior units differ by maker: a 3068 front door needs 38¼–38½ × 82–82½ in.
Size a 3068 Front DoorCheck the Clear Width
An open door and its stop take about 2⅜ in from the opening, so a 32 in door leaves roughly 29⅝ in. A main exit door needs 32 in clear under IRC R311.2, which in practice means a 36 in door.
Check a 3068 DoorSize Pocket, Barn and Double Doors
Not every door fits the same hole. A pocket door needs twice its width plus 1 in, a barn door should overlap its opening by 1 in each side, and a double door’s code is the pair. Pick a type to see its opening.
Try a Pocket DoorHow to Measure a Door Rough Opening
A tape measure and the calculator above are all it takes.
- 1
Find the door size
Measure the old slab’s width and height, or read the code on the order, such as 2868. Type it above; codes, dashes and plain inches all work.
- 2
Measure the framed opening
With the trim off, measure between the studs at the top, middle and bottom, then from the floor to the header. Use the smallest width you find.
- 3
Compare, then order
Pick the door type and compare its rough opening with yours. Leave room for shims, and read the maker’s installation instructions before you order.
When Door Sizes Matter
Replacing an old interior door
Keep the old frame and buy a slab the size of the old door, or buy a prehung unit and check that it fits the rough opening first.
Choosing a new front door
Most entry doors are 36 × 80 in. Check the rough opening first, then preview new door styles on a photo of your own house.
Getting furniture through a doorway
A door’s clear width, not its slab width, decides what fits through. Check the clear width here, then compare it with your sofa.
FAQ
Questions About Door Sizes
Most outside doors are 36 × 80 in, a 3068, and 1¾ in thick. Stock entry doors also come 30, 32 and 42 in wide, and 96 in tall. A 36 × 80 in prehung unit needs a rough opening of 38¼–38½ × 82–82½ in, depending on the maker.
A 2868 door is 2 ft 8 in wide and 6 ft 8 in tall: 32 × 80 in, or 81.3 × 203.2 cm. As an interior prehung it needs a 34 × 82–82½ in rough opening. It leaves about 29⅝ in clear, so it is not wide enough for a main exit door.
A 3-0 door is 36 in wide. An interior prehung 3068 needs 38 × 82–82½ in; an exterior prehung 3068 needs 38¼–38½ × 82–82½ in, depending on the maker. Frame to the install sheet for the unit you buy, and leave room for shims.
Interior doors are usually 80 in tall and 1⅜ in thick. Bedroom doors run 28–36 in wide, with 32 in the most common; bathroom doors 28–32 in; closets 24–36 in, often with bifolds. These are common sizes, not code minimums.
An interior prehung frame is about 1½ in wider than the door: 33½ × 81½–82 in for a 2868. Jambs come 4 9/16 in deep for 2×4 walls and 6 9/16 in for 2×6 walls. The slab itself is 1⅜ in thick inside, 1¾ in outside.
Interior French pairs are usually 48, 60 or 72 in wide by 80 in tall, and need the pair + 2 in of rough opening width. An exterior 6068 pair needs 74¾–75¼ × 82–82½ in. French patio doors are often sold by opening size: a 6068 fits a 72 × 80 in opening.
Usually not. A 32 in door leaves about 29⅝ in clear, and ADA 404.2.3 and the IRC egress rule both ask for 32 in clear. A 36 in door leaves about 33⅝ in. Inside a home, HUD’s Fair Housing guide accepts a 34 in door, about 31⅝ in clear.
No. It uses published charts and rules of thumb to plan with. Rough openings differ by maker, so frame to the install sheet for the door you buy. Your local code, its amendments and your inspector decide what passes.