Last updated: August 20, 2026
Doorway width is the measurement people get wrong most consistently, and not because the number is complicated. It is because there are two numbers: the size of the door, which is what a builder or a hardware store talks about, and the clear opening, which is what a wheelchair or rollator actually passes through. The gap between them is often two or three inches.
This guide covers what the ADA standard specifies for door openings, how to measure clear width at home, and what to do when a doorway is an inch or two short.
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Quick Answer
What is the ADA minimum doorway width?
- The ADA standard specifies a clear width of 32 inches minimum, measured between the face of the door open at 90 degrees and the stop on the opposite side.
- Openings deeper than 24 inches, such as a thick wall or a short passage, require 36 inches minimum instead.
- Clear width is not door width. A door leaf loses roughly an inch and a half to two inches to its own thickness and the stop, so a 32 inch leaf rarely gives a 32 inch clear opening.
- Thresholds at doorways shall be half an inch maximum in height, with an exception for existing thresholds up to three quarters of an inch beveled on each side at a slope no steeper than 1:2.
Private homes are not covered by the ADA. Measure the clear opening rather than the door, and compare it to your actual equipment.
Clear Width Is Not Door Width
The ADA standard defines clear width as the measurement between the face of the door, with the door open 90 degrees, and the stop on the opposite jamb. That definition exists precisely because the open door itself intrudes into the opening. A door leaf takes up its own thickness plus the hardware, and the stop takes a little more.
The practical consequence is that a nominal 32 inch door does not produce a 32 inch clear opening. In most residential construction you need a 34 or 36 inch door leaf to end up with a clear opening at or above 32 inches. This is the single most common measuring mistake, and it is the reason people order equipment that will not fit through a door they measured.
How to Measure Yours
Open the door to 90 degrees. Put the tape on the face of the door itself, not on the frame, and measure across to the stop on the opposite side. That number is your clear width. Do it at about waist height rather than at the floor, because door stops, weatherstripping, and hardware live at different heights.
The Standard’s Figures
| Element | What the ADA standard specifies |
|---|---|
| Door clear width | 32 inches minimum, door open 90 degrees, measured to the stop |
| Openings deeper than 24 inches | 36 inches minimum clear |
| Threshold height | Half an inch maximum; existing thresholds up to three quarters of an inch permitted if beveled at 1:2 on each side |
| Door hardware height | Operable parts 34 to 48 inches above the finish floor |
| Hardware operation | Usable with one hand, without tight grasping, pinching, or twisting of the wrist |
| Interior hinged door opening force | 5 pounds maximum, with exceptions including fire doors |
| Walking surface clear width | 36 inches minimum, reduced to 32 inches for a length of 24 inches maximum |
Why 32 Inches, and Why It Is a Minimum
The 32 inch figure is a squeeze rather than a comfortable pass, which is why the standard allows it only for a shallow opening and requires 36 inches once the opening is deeper than 24 inches. Passing through a thin doorway is a single movement; passing through a thick wall means steering inside the opening, and steering needs room.
The same logic runs through the walking surface rule. An accessible route is 36 inches wide minimum and may narrow to 32 inches only for a stretch of 24 inches or less. Anywhere someone has to turn, rather than go straight through, needs considerably more than the doorway minimum. Our turning space and hallway width guide covers those figures.
The Approach Matters as Much as the Opening
The standard also sets maneuvering clearances on both sides of a door, and they vary by approach direction and by whether you are on the push or the pull side. The one worth knowing at home is the latch side clearance on a front pull approach, which the standard puts at 18 inches minimum, because a wheelchair user needs somewhere to sit beside the latch while the door swings toward them. A doorway with adequate width and no room beside the latch still does not work.
What to Do About a Narrow Doorway
Very few homes have 32 inch clear openings on interior doors, and bathroom doors are usually the narrowest in the house. There is a ladder of fixes here, and it is worth working up it rather than starting at the top.
Removing the door entirely gains you the door thickness and any hardware, and a curtain or a pocket arrangement often solves a bathroom or a closet doorway at no cost. Swing clear or offset hinges are the next step: they swing the leaf fully out of the opening rather than leaving it in the way, and typically recover an inch and a half to two inches without touching the frame. Both are reversible, which matters in a rental.
When the Frame Has to Change
Widening a doorway is a real construction job that involves the header and possibly load bearing structure, and it is not a weekend fix. Before anyone goes there, measure what actually needs to pass through. A narrow rollator, a transport chair rather than a full wheelchair, or a different device entirely sometimes solves the problem for a fraction of the disruption. Our guides to narrow rollators and transport chairs cover those options.
Measure the Equipment, Not Just the Door
The number that matters is the overall width of the device that has to pass, and manufacturers list it per model. Wheelchair and rollator widths vary considerably, and hand rims, push handles, and armrests all add width beyond the seat. Take the listed overall width, add a couple of inches for knuckles, and compare that to your clear opening.
Also check the approach. A device that fits through a doorway head on may not fit when it has to turn into the opening from a narrow hall, which is the situation in most bathroom doorways. Our guide to moving through doorways with a walker covers the technique side.
A Note on Homes and the Standard
The ADA applies to public accommodations and commercial facilities, not to private houses. Nothing here is a requirement for your home. The figures are useful as a reference for what genuine wheeled access needs, and as a common language when describing a problem to a builder or a therapist.
If you are unsure what fits your situation, ask your doctor or an occupational therapist, who can measure the actual chair, watch the actual doorway being used, and often suggest a fix that nobody in the household had considered. Our guide to whether the ADA applies to private homes covers that question in full.
Frequently Asked Questions
What is the minimum doorway width for a wheelchair? The ADA standard specifies a clear width of 32 inches minimum with the door open 90 degrees, measured from the face of the door to the stop on the opposite side. Openings deeper than 24 inches require 36 inches minimum.
Is a 32 inch door the same as a 32 inch clear opening? No. The door leaf and the stop reduce the opening, so a 32 inch leaf typically gives around 30 inches clear. A 34 or 36 inch leaf is usually needed to reach a 32 inch clear width.
How do I measure the clear width of a doorway? Open the door to 90 degrees, place the tape on the face of the door rather than on the frame, and measure across to the stop on the opposite jamb, at about waist height.
Can offset hinges make a doorway wide enough? Swing clear or offset hinges move the door out of the opening and typically recover an inch and a half to two inches, which is often enough. They are inexpensive, reversible, and worth trying before considering structural work.
What is the maximum threshold height at a door? Half an inch under the ADA standard, with an exception permitting existing or altered thresholds up to three quarters of an inch where they are beveled on each side at a slope no steeper than 1:2.
How much space is needed beside a door to open it from a wheelchair? The standard sets maneuvering clearances that vary by approach. The one most often quoted is 18 inches minimum of latch side clearance on a front pull approach, because the user needs somewhere to be while the door swings toward them.
Do interior doors in a home have to meet ADA widths? No. The ADA does not apply to private homes. The figures are a reference point, and many households solve a narrow doorway with different equipment rather than a wider door.
The Bottom Line
The ADA specifies 32 inches minimum clear width at a door opening, rising to 36 inches where the opening is deeper than 24 inches, and it measures from the face of the open door rather than the frame. Measure the clear opening in your own home the same way, compare it to the listed overall width of the actual device, and work up the ladder of fixes: remove the door, fit offset hinges, change the equipment, and only then consider the frame. Our hallway and doorway safety guide covers the wider picture.