Sizing exterior door

For a Single door, the rough opening should be 2-1/2 inches wider and 2 inches taller than the nominal dimensions of the door slab you measured earlier. Example: If you have a 36 x 80 door, your rough opening should be 38-1/2″ wide x 82″ tall.

How do I know what size exterior door to buy?

The size of the new door should be exactly the same as your existing door. Meaning the replacement should have the exact same height, width, and thickness. In most cases, simply order a new door the same size as the old one.

What is the actual size of a 32 exterior door?

Common door size is 32-in x 80-in Unit dimension is 33.5-in x 81.75-in. The suggested rough opening is 34-in x 82.25-in. This unit comes with a 4-9/16-in wide primed composite frame.

How much smaller should a door be than the frame?

Just add 2″ to the width of the actual door size. You should add 2-1/2″ to the height of the actual door. This will give you room to space the door frame off of the sub-floor.

What size opening do you need for a 36 inch exterior door?

about 38.5″ x 82.25″

A pre-hung single door that measures at 36″ x 80″ will require a rough opening of about 38.5″ x 82.25″ for a precise fit. Make sure to align and square up your door before nailing the frame in place so it will close properly.

How do you measure an exterior door for replacement?

Quote from Youtube video: Number measure from the top inside edge of the frame. Down to the top of the sill. Finally we measure for the door thickness.

Does door size include frame?

Standard Door Frame Size



The average measurement of 36 by 80 inches refers to the door panel itself, not including the frame. The frame extends beyond the panel, and is installed into the rough opening. The rough opening should be at least ¾ inch wider and ? inch taller than the door frame.

What is rough opening for 32 inch door?

A Rough Cut for a 32-Inch Door A two-foot-eight-inch (32″) by six-foot-eight-inch-high (80″) prehung door, for example, would necessitate a rough opening width of 34 inches and a height of 82 inches.

What should the opening be for a 32 inch door?

Measurements For Rough Opening

What is the rough opening for a 32 exterior door?

Rough opening for a 32 inch door:- for a 32″ door, you will need rough opening to 2 inches wider & 2-1/2″ taller than the actual door size, so, if you are installing a 32″ wide and 80″ tall or 32″×80″ interior, or exterior, barn, bifold & pocket bedroom door, the rough opening will be 34″ wide and 82-1/2″ tall or 34″× …

What is the rough opening for a 36 inch door and frame?

Standard Sizes



A 36” x 80” pre-hung single door will use a rough opening of approximately 38-1/2” x 82-1/4” to fit. Always remember to square up your door before you nail the frame in place to assure it will close properly.

What is the rough opening for a 36 inch knock down door?

Width: Nominal door opening width + 2” (50.8 mm). Example: 36” + 2” = 38” (914 mm + 50.8 mm = 964.8 mm). The rough opening should be square and level. 2 Lay down one jamb against one side of the rough opening.

What is the actual size of a 36 door?

While a door width of 36 inches is oversized for an interior door, it’s the standard size for front doors. The standard height remains the same, however, at 80 inches. Most entry doors are slightly thicker than interior doors as well, with a standard thickness is 1¾ inches.

What is the standard door size for residential homes?

But the standard common door width for US homes is 36 inches. Other very easy-to-find sizes are 30 and 32 inches. Note that when measuring the width of a door, the measurement reflects only the door panel alone, not the frame surrounding it.

What is the standard rough opening for an exterior door?

Standard Sizes



Standard door heights are 6/6 (78”) and 6/8 (80”). In addition, special sizes can sometimes be custom ordered. A 36” x 80” pre-hung single door will use a rough opening of approximately 38-1/2” x 82-1/4” to fit.

How do you measure a Prehung door?

Quote from the video:
Quote from Youtube video: For a proper fit you must specify a standard door size no larger than the smallest dimension of your rough. Opening. Next measure the rough opening height measure from the finished floor.

Are all exterior doors the same height?

The standard size for a front door is 36” x 80”, or about 3′ x 6’7”. Beyond this, you can find exterior door sizes ranging from as narrow as 30” to as tall as 96”. If you have a double door entryway, the standard size will be 72” x 80”, or double the width of a single front door with the same height.

What are standard door heights?

around 80 inches high

Typically, main entry doors measure 36 inches wide by around 80 inches high. Depth can vary depending on material. However, you can have doors that are much taller. These might be visually appealing in home designs with a tall or large entryway or a cathedral ceiling.

What is the rough opening for a 34 inch door?

Rough opening for a 34 inch door:- for a 34″ door, you will need rough opening to 2 inches wider & 2-1/2″ taller than the actual door size, so, if you are installing a 34″ wide and 80″ tall or 34″×80″ interior, or exterior, barn, bifold & pocket bedroom door, the rough opening will be 36″ wide and 82-1/2″ tall or 36″× …

What is nominal door size?

96 inches or 8 ft. is now very common for newer homes and stock exterior doors are also commonly available in 30 and 32-inch widths. Some door manufacturers sell doors in 7ft & 8ft heights and door widths from 24 inches to 42 inches.

How big is the rough opening for a 30 door?

32-1/2 inches

32-1/2 inches. The rough framing should be 2-1/2 inches wider than the door itself. That leaves room for the 3/4 inch finish frame on each side of the door, and then 1/2 inch on each side for the shims between the finish frame and the rough frame.

What is the actual size of a 30 inch door?

In the building trades, a 30-inch door is called a “2-6” door, meaning 2 feet, 6 inches wide, or 30 inches.