If you’re wondering how many feet is a doorway, there isn’t one single size for every doorway. However, a common residential interior door is about 6 feet 8 inches tall, which equals approximately 6.67 feet.
A standard interior doorway is also commonly around 2 feet 6 inches to 3 feet wide, depending on the door and the building.
The most important point is that doorway height and width are separate measurements. When someone asks how many feet a doorway is, they may be asking about its height, width, or the complete opening.
Quick Answer
A common residential doorway is approximately:
- Height: 6 feet 8 inches, or about 6.67 feet
- Width: 2 feet 6 inches to 3 feet, depending on the door
- Common door size: 30 × 80 inches
- 30 × 80 inches in feet: 2.5 × 6.67 feet
A widely used interior door size is 30 inches wide × 80 inches tall.
| Door Measurement | Inches | Feet |
|---|---|---|
| Common height | 80 in | 6.67 ft |
| 24-inch width | 24 in | 2 ft |
| 28-inch width | 28 in | 2.33 ft |
| 30-inch width | 30 in | 2.5 ft |
| 32-inch width | 32 in | 2.67 ft |
| 36-inch width | 36 in | 3 ft |
So, if you’re asking how tall a typical residential doorway is, about 6.67 feet is a useful general reference.
Standard Doorway Dimensions
Doorways vary depending on the building, room, door type, accessibility requirements, and construction practices.
For many residential applications, doors are commonly 80 inches tall.
That converts to:
80 ÷ 12 = 6.67 feet
So an 80-inch door is:
6 feet 8 inches
Width varies more widely.
| Common Door Width | Feet | Inches |
|---|---|---|
| 24 inches | 2 ft | 24 in |
| 28 inches | 2.33 ft | 28 in |
| 30 inches | 2.5 ft | 30 in |
| 32 inches | 2.67 ft | 32 in |
| 36 inches | 3 ft | 36 in |
A 36-inch-wide door is exactly 3 feet wide, while a 30-inch-wide door is 2.5 feet wide.
Standard Door Height in Feet
One of the most common residential door heights is 80 inches.
To convert inches to feet:
80 ÷ 12 = 6.6667 feet
So:
80 inches = 6 feet 8 inches ≈ 6.67 feet
Other door heights are also available.
| Door Height | Feet | Feet & Inches |
|---|---|---|
| 78 inches | 6.50 ft | 6 ft 6 in |
| 80 inches | 6.67 ft | 6 ft 8 in |
| 84 inches | 7.00 ft | 7 ft |
| 96 inches | 8.00 ft | 8 ft |
Older homes and custom construction may have different doorway heights, so the actual opening should always be measured before purchasing a replacement door.
Standard Door Width in Feet
Unlike height, doorway width can vary considerably.
Common interior door widths include 24, 28, 30, 32, and 36 inches.
Converted to feet:
| Door Width | Equivalent in Feet |
|---|---|
| 24 inches | 2 ft |
| 28 inches | 2.33 ft |
| 30 inches | 2.5 ft |
| 32 inches | 2.67 ft |
| 36 inches | 3 ft |
A 32-inch door, for example, is approximately 2 feet 8 inches wide.
A 36-inch door is exactly 3 feet wide.
The width selected can depend on the room, building design, intended use, and accessibility requirements.
Doorway Size by Door Type
Different types of doors can have different typical dimensions.
| Door Type | Common Height | Common Width Range |
|---|---|---|
| Interior residential door | 80 in | 24–36 in |
| Bedroom door | 80 in | 28–36 in |
| Bathroom door | 80 in | 24–32 in |
| Exterior residential door | Often 80 in | Often 30–36 in |
| Double door | Often 80 in | Varies |
| Custom door | Varies | Varies |
These are general residential ranges rather than universal requirements. Local building codes, manufacturers, existing framing, and accessibility requirements can affect the appropriate dimensions.
Door Slab vs. Rough Opening
One important measurement distinction is the difference between the door slab and the rough opening.
The door slab is the actual movable door.
The rough opening is the framed opening in the wall designed to accommodate the door, frame, and installation clearances.
For this reason, a door advertised as 30 × 80 inches does not necessarily mean the entire wall opening will measure exactly 30 × 80 inches.
| Measurement | What It Means |
|---|---|
| Door slab | Actual door panel |
| Door frame | Structure surrounding the door |
| Rough opening | Framed wall opening for installation |
| Finished opening | Usable opening after finishing |
If you’re replacing a door, don’t rely only on the advertised door size. Measure the existing opening and follow the manufacturer’s installation specifications.
How to Measure a Doorway
Measuring a doorway is relatively simple, but accuracy matters.
Measure the Height
Measure vertically from the finished floor to the top of the opening.
Record the measurement in inches first.
For example:
80 inches ÷ 12 = 6.67 feet
So an 80-inch doorway is approximately 6.67 feet high.
Measure the Width
Measure horizontally across the doorway at several points.
Check the:
- Top
- Middle
- Bottom
If the measurements differ, the opening may not be perfectly square.
Measure the Depth
For replacement doors and frames, also measure the thickness or depth of the wall opening.
This can be especially important when installing a complete door-and-frame system.
What If Your Doorway Is Not Standard?
Not every doorway follows common residential dimensions.
You may find unusual dimensions in:
- Older homes
- Historic buildings
- Garages
- Basements
- Converted rooms
- Commercial buildings
- Custom homes
- Renovated properties
A doorway could be shorter, taller, narrower, or wider than common residential sizes.
If you’re replacing a door, measure the existing opening instead of assuming that it matches a standard dimension.
Custom doors may also be available when an existing opening does not match common manufactured sizes.
Why Doorway Height Matters
Doorway height affects more than appearance.
A taller doorway can provide additional clearance for people, furniture, and equipment. It can also affect the visual proportions of a room.
For example, an 80-inch doorway is 6 feet 8 inches tall, while an 84-inch doorway is exactly 7 feet tall.
The difference is:
84 − 80 = 4 inches
That relatively small difference can matter when installing doors in a room with a specific ceiling height or when matching existing doors throughout a property.
Why Doorway Width Matters
Doorway width affects how easily people and objects can pass through the opening.
A 24-inch doorway is only 2 feet wide, while a 36-inch doorway is exactly 3 feet wide.
That is a difference of:
36 − 24 = 12 inches
When measuring a doorway for furniture movement, remodeling, or accessibility, consider the actual clear opening, not simply the nominal door size.
Common Doorway Measurement Mistakes
Assuming Every Doorway Is the Same Size
There is no single universal doorway dimension. Residential doors come in multiple sizes, and older or custom buildings may differ.
Measuring Only the Door
If you’re replacing a door, measuring the door slab alone may not provide enough information.
The frame and rough opening can have different dimensions.
Converting Feet Incorrectly
Remember:
1 foot = 12 inches
So an 80-inch door is not 8 feet tall.
It is:
80 ÷ 12 = 6.67 feet
or 6 feet 8 inches.
Ignoring the Finished Floor
When measuring doorway height, the finished floor level matters. Flooring changes can affect the final clearance beneath a door.
FAQs
How many feet tall is a standard doorway?
A common residential door is 80 inches tall, which equals approximately 6.67 feet, or 6 feet 8 inches.
How many feet wide is a standard doorway?
Common residential door widths range from about 2 feet to 3 feet, depending on the door. Common widths include 24, 28, 30, 32, and 36 inches.
Is a doorway 7 feet tall?
Some doorways are 7 feet tall, but a common residential door height is 80 inches, or 6 feet 8 inches. Taller 84-inch doors are exactly 7 feet.
Is a 36-inch doorway 3 feet wide?
Yes. 36 inches equals exactly 3 feet, so a 36-inch-wide doorway is 3 feet wide.
How tall is an 80-inch doorway in feet?
An 80-inch doorway is 6 feet 8 inches, or approximately 6.67 feet.
How wide is a 30-inch doorway in feet?
A 30-inch doorway is 2.5 feet wide, or 2 feet 6 inches.
How wide is a 32-inch doorway in feet?
A 32-inch doorway is approximately 2.67 feet wide, or exactly 2 feet 8 inches.
Does doorway size include the frame?
Not necessarily. Door size, frame size, rough opening, and finished opening can all refer to different measurements. Always check which dimension a specification describes.
Conclusion
A common residential doorway is approximately 6.67 feet tall, based on a typical 80-inch door height. Door widths vary more widely, with common sizes ranging from 2 feet to 3 feet.
For example, a 30-inch door is 2.5 feet wide, while a 36-inch door is exactly 3 feet wide.
Because doorway dimensions vary by home and door type, measure the actual opening whenever you are buying, replacing, or installing a door.
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