| Primary value | 1.20 m |
| Applies to | Single-direction wheelchair ramps · Building entry ramps |
| Exceptions | Two-way wheelchair traffic → 1.80 m |
| Measured as | Clear width between handrails or between curb edges, whichever is narrower. |
| Source | IS 4963 — Section 5 📚 Cross-referenced |
1.20 m fits a standard wheelchair (700 mm) plus side clearance for the user's elbows and a margin to avoid scraping the rails. Below this, users contact the rails on every push.
Most accessible ramps provide 1.20–1.50 m. Commercial entries with significant accessible traffic go to 1.80 m.