Module 27110-06 Basic Stair Lay-out 1. The stairway shown in the figure above is classified as a _____ stairway (Page 10.3, Section.

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Transcript Module 27110-06 Basic Stair Lay-out 1. The stairway shown in the figure above is classified as a _____ stairway (Page 10.3, Section.

Slide 1

Module 27110-06 Basic
Stair Lay-out


Slide 2

1. The stairway shown in the figure above is classified as a
_____ stairway (Page 10.3, Section 2.0.0 Figure 6).
Wa ll

UP
Wa ll

Wa ll
Wa ll

Answer

Wide-U stairway

Wa ll


Slide 3

2. The stairway shown in the figure above is classified as a
_____ stairway (Page 10.3, Section 2.0.0 Figure 7).
Wa ll

UP
Wa ll

Wa ll
Wa ll

Answer

Double-L stairway


Slide 4

3. The stairway shown in the figure above is classified as a
_____ stairway (Page 10.3, Section 2.0.0 Figure 8).
Wa ll

UP
Wa ll

Wa ll

Answer

Narrow-u stairway

Wa ll


Slide 5

4. What types of stairs are included in the geometrical
stairs category (Page 10.4, Section 2.0.0)?

Answer

Circular, elliptical, spiral


Slide 6

5. The stair parts marked A in the picture are _____ (Page
10.5, Section 3.0.0 Figure 10).

A
Answer

Tread


Slide 7

6. The stair parts marked B in the picture are _____ (Page
10.5, Section 3.0.0 Figure 10).

B
Answer

Riser


Slide 8

7. The stair parts marked C in the picture are _____ (Page
10.5, Section 3.0.0 Figure 10).

Answer

Stringer

C


Slide 9

8. What is a gooseneck (Page 10.6, Section 3.0.0)?

Answer

Curved part of a handrail


Slide 10

9. What parts of an interior stairway make up a balustrade
(Page 10.6, Section 3.0.0)?

Answer

Baluster (spindle), handrail, newel post(s)


Slide 11

10. The stair part marked A in the picture is called the…
(Page 10.7, Section 3.0.0 Figure 12).

Answer

Nosing

A


Slide 12

11. The stair part marked B in the picture is called
the...(Page 10.7, Section 3.0.0 Figure 12).

B
Answer

Skirtboard


Slide 13

12. The stair part marked C in the picture is called the…
(Page 10.7, Section 3.0.0 Figure 12).

Answer

Baluster

C


Slide 14

13. Where is a skirtboard found (Page 10.8, Section 3.0.0)

Answer

It is also known as a finished stringer and is found
against the wall side of a stairway.


Slide 15

14. What is the minimum standard headroom for a stairway
used in a public (commercial) building? (Page 10.8, Section
4.1.0)

Answer

6'-8"


Slide 16

15. What is the standard width range for a stair width
(Page 10.8, Section 4.4.0)?

Answer

36”- 44”


Slide 17

16. If a set of stairs does not have a landing, what should
its maximum rise be (Page 10.11, Section 5.1.1 Note)?

Answer

12’


Slide 18

17. How is the tread run (unit run) measured (Page 10.12,
Section 5.1.2)?

Answer

Measured from the face of one riser to the face
of the next riser (nosing not included)


Slide 19

18. How many risers and what will their individual height
be for a stair with a total rise of 8'-2“ (Page 10.13, Section
5.1.2)?
Answer

8’-2 = 98”
98”/ 7” (target riser height) = 14 risers
Divide the # of risers back into the riser height.
This is especially true if previous answer did not
come out even.
98” / 14 = 7” riser height


Slide 20

19. How many treads will a stair with a total rise of 8'-2"
and a total run of 9'-9",using the stairwell header used as
the last riser have (Page 10.13, Section 5.1.2)?
Answer

8’-2 = 98”
98”/ 7” (ideal riser height) = 14 risers
There will be one less tread than risers = 13


Slide 21

20. How wide would the treads be for stairs with a total
rise of 8'-2" and a total run of 9'-9" and using the stairwell
header as the last riser (Page 10.13, Section 5.1.2)?
Answer

8’-2 = 98”
98”/ 7” (ideal riser height) = 14 risers
There will be one less tread than risers = 13
9’-9” = 117”
117” / 13 = 9” for a tread width
Stairway requires 13 treads that are 9”wide.


Slide 22

21. What part of a framing square is used to measure the
unit rise of a stair stringer (Page 10.18, Section 5.3.0
Figure 22)?

Answer

Tongue


Slide 23

22. What part of a framing square is used to measure the
unit run of a stair stringer (Page 10.18, Section 5.3.0
Figure 22)?

Answer

Blade


Slide 24

End of Presentation