27110 #3 Stairs Layout

Which of the following is NOT part of the procedure to determine stairway requirements?

• Calculate the riser height.

• Determine the tread depth.

• Measure the total run for a stairway.

• Identify the color of the stairway.

What should you be able to explain after completing the session?

• How to calculate the riser height, tread depth, and total run for a stairway.

• How to design a spiral staircase.

• How to install a handrail.

• How to paint a stairway.

Which of the following information is commonly specified by the architect for stairways in architectural plans?

• Total rise

• Total width

• Total height

• Total depth

What is framed first according to the drawings in the case of stairwell openings?

• The stair treads

• The stair risers

• The stairwell openings

• The stair handrails

Which of the following is NOT commonly specified by the architect for stairways?

• Unit rise

• Unit run

• Number of risers and treads

• Total height

What determines the slope of the stairway?

• The ratio of the riser height and tread depth

• The width of the stairway

• The height of the building

• The number of steps

According to Rule 1, what should the sum of tread width and riser height equal?

• 24 to 25 inches

• 70 to 75 inches

• 17 to 18 inches

• 20 to 22 inches

According to Rule 2, what should the sum of tread width plus (2 multiplied by riser height) equal?

• 17 to 18 inches

• 24 to 25 inches

• 70 to 75 inches

• 20 to 22 inches

According to Rule 3, what should tread width multiplied by riser height equal?

• 17 to 18 inches

• 24 to 25 inches

• 70 to 75 inches

• 20 to 22 inches

What is the preferred slope range of a stairway for maximum ease and safety in ascent and descent?

• 20 degrees to 25 degrees

• 25 degrees to 30 degrees

• 30 degrees to 35 degrees

• 35 degrees to 40 degrees