Modifications
Doorway Widening for Wheelchair Access
Updated June 2025 — Width standards, permits, and alternatives
The Width Standard: 32" vs 36" Clear
Standard residential interior doors have a nominal width of 32 inches, but the actual clear opening (the space a wheelchair passes through) is typically 29–30 inches once the door thickness and hinges are accounted for. This is insufficient for most manual wheelchairs (which need 30–32" clear minimum) and power wheelchairs (which often need 32–36" clear).
- ADA minimum (commercial): 32 inches clear width
- ADA preferred / wheelchair-friendly: 36 inches clear width
- Power wheelchair recommendation: 36 inches clear, ideally 42 inches for easy passage without repositioning
The Offset Hinge Solution (No Structural Work Required)
Before committing to full doorway widening, consider offset hinges (also called swing-clear hinges). These replace standard door hinges and swing the door completely clear of the doorframe when open, gaining 1.5–2 inches of additional clear width. This can bring a 29" clear opening to 31" — enough for many manual wheelchair users — with no permits, no structural work, and a cost of $20–$60 per door. This is always the first option to try before widening.
When Full Widening Is Necessary
If offset hinges are insufficient, the door frame and rough opening must be widened. This involves:
- Removing the door and existing frame
- Determining whether the wall is load-bearing (critical — load-bearing walls require a structural header)
- Cutting the rough opening wider
- Installing a new (wider) header if load-bearing
- Installing a new frame and door
- Patching drywall and trim on both sides
Non-load-bearing walls: simpler and less expensive ($600–$1,200 per door). Load-bearing walls: require structural engineering in some jurisdictions and cost $1,200–$2,500 per door.
Permit Requirements
Doorway widening is structural work in most interpretations — building permits are required in the majority of jurisdictions. The key question for the permit is whether the wall is load-bearing. If it is, some jurisdictions require structural drawings. Always check with your local building department before starting.
Pocket doors slide into the wall rather than swinging, which eliminates the door swing clearance issue. They can provide more usable floor space in tight bathrooms. However, pocket door installation requires opening the wall to install the sliding track hardware — it is a structural project requiring permits, similar in scope to widening. Pocket doors are best considered during a broader bathroom or hallway remodel, not as a standalone modification. They also have limited width options and may be harder to operate for people with limited grip strength.