Figure 21
| Height of Curb Face | Side Flare Width at Curb | Ramp Run Length (Plan) | Total Sidewalk Width/4 Landing |
| 4 in. (10.2 cm) | 40 in. (1.0 m) | 63 in. (1.6 m) | 111 in. (2.8 m) |
| 5 in. (12.7 cm) | 50 in. (1.3 m) | 78 in. (2.0 m) | 126 in. (3.2 m) |
| 6 in. (15.2 cm) | 60 in. (1.5 m) | 95 in. (2.4 m) | 143 in. (3.6 m) |
| 7 in. (17.8 cm) | 70 in. (1.8 m) | 111 in. (2.8 m) | 159 in. (4.2 m) |
| 7.5 in. (19.0 cm) | 75 in. (1.9 m) | 118.5 in. (3.0 m) | 166.5 in. (4.2 m) |
| 8 in. (20.3 cm) | 80 in. (2.0 m) | 126 in. (3.2 m) | 174 in. (4.4 m) |
Figure 21 is a line drawing illustrating the parts of a perpendicular curb ramp–ramp run, landing and flared sides--and a chart of sidewalk dimensions based upon curb height.