Interior Design Implementation (IDIX) 2 Practice Exam

The term for the entire sequence of steps between landings is flight. In stair terminology, a flight is the continuous run of steps from one landing to the next, including all treads (the horizontal stepping surfaces) and risers (the vertical sections). If there are multiple landings, each segment between them is a separate flight. The other terms describe specific parts: a riser is the vertical component between treads, a tread is the horizontal surface you step on, and nosing is the front edge of a tread that projects forward.