NCCER Carpentry Basic Stair

Front

What is the maximum allowable difference in tread depths for a stairway?

Back

3/8 inch.

Front

What type of stringer is used for open riser stairways?

Back

Dadoed stringer.

Front

Define 'unit run' in stair construction.

Back

The horizontal distance from the face of one riser to the face of the next riser.

Front

What is a narrow-U stairway?

Back

A stairway design classified as narrow-U typically has a specific configuration that allows for efficient use of space.

Front

What is the maximum height difference allowed between the greatest and smallest riser heights according to IRC?

Back

3/8 inch.

Front

What is the purpose of a stringer in stair construction?

Back

To support the treads and risers of the stairway.

Front

What is the definition of 'tread depth'?

Back

The horizontal part of a stair step where the foot is placed.

Front

What is the significance of the IRC in stair design?

Back

The International Residential Code (IRC) provides safety standards for residential stair construction.

Front

What does 'riser height' refer to in stair construction?

Back

The vertical distance between the top of one tread and the top of the next tread.

Front

What is a 'cutout stringer'?

Back

A type of stringer where the treads and risers are cut out of the stringer material.