The structural element that provides lateral support to a staircase is known as
- ATread
- BRiser
- CStringerCorrect
- DLanding
Solution
Concept
Stringer
Step-by-step solution
1. Tread is the horizontal step; riser is the vertical part. 2. Landing is a platform between flights. 3. The stringer is the inclined structural member that supports the treads and risers.
Explanation
The stringer (or string beam) is the sloping member along the sides of a flight that carries the steps and gives them lateral support.
Shortcut
Stringer = side support of the stair.
Common mistake
Choosing landing.
Correct answer: C) Stringer