Landings should be at least as wide as the ramp, with a minimum of 36 inches. Landing length should be at least 60 inches. Landings between runs should be a minimum of 60 inches square.
The maximum rise should be no more than an inch for every 12 inches of ramp length. Maximum rise for one run is 30 inches.
Ramp width should be at least 36 inches clear. This measurement includes any overhang, and determines the minimum width of all platforms and landings.
Platforms and landings with doors should have a minimum of 60 inches square, with 24 inches from the opening side of the jamb to the outer edge of the landing.
Handrails are required on both sides. Rails for inner turns should be continuous. The top of a rail should be between 34 and 38 inches high.