| Primary value | 1.50 × 1.50 m |
| Applies to | Top of ramps · Bottom of ramps · Mid-ramp landings (between flights) |
| Measured as | Clear flat plan dimensions of the landing — must accommodate a wheelchair turning circle. |
| Source | IS 4963 — Section 5 📚 Cross-referenced |
1.5 × 1.5 m is the minimum space for a wheelchair user to fully turn around. Smaller landings force users into multi-point turns or block other users on two-way ramps.
Universal accessible standard. Increases to 2.0 × 2.0 m at door approaches where the user must also reach for the door handle.