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Interiors and Circulation

BIM for Architecture, Engineering, and Construction Curriculum

Key Terms

The following key terms were used in this lesson:

Treads


The horizontal surfaces of the stair that you step on.

Risers


The vertical surfaces of the stair between the treads.

Stringers


The supports for the treads and risers, which can be located at the sides of the stair or in the center (underneath the treads and risers).