NCCER Carpentry Basic Stair

Front

What type of stringer is typically used for stairways with open riser designs?

Back

Dadoed stringer is used for stairways with open riser designs.

Front

How is tread width (unit run) measured?

Back

Tread width is measured from the face of one riser to the face of the next riser.

Front

What is the purpose of a ledger in stair assembly?

Back

A ledger is fastened to the floor to add strength to the stair assembly.

Front

Which stairway classification is known as narrow-U?

Back

Stairway D is classified as a narrow-U.

Front

What is Rule 2 for calculating rise-to-run ratio?

Back

Tread width + (2 × riser height) = 24" to 25".

Front

Define 'stringer' in carpentry.

Back

A stringer is a structural member that supports the treads and risers of a staircase.

Front

What is the function of a 'riser' in stair construction?

Back

A riser is the vertical component of a stair that connects one tread to the next.

Front

Explain the term 'tread' in the context of stairs.

Back

A tread is the horizontal part of a stair where the foot is placed.

Front

What does 'open riser' mean in stair design?

Back

An open riser design has no vertical component between treads, allowing visibility through the stairs.

Front

What is a 'strongback' in stair construction?

Back

A strongback is a horizontal member that provides additional support to the stair assembly.