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Module 27110-06 Basic Stair Lay-out

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1. The stairway shown in the figure above is classified as a _____ stairway (Page 10.3, Section 2.0.0 Figure 6). Answer Wide-U stairway

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2. The stairway shown in the figure above is classified as a _____ stairway (Page 10.3, Section 2.0.0 Figure 7). Answer Double-L stairway

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3. The stairway shown in the figure above is classified as a _____ stairway (Page 10.3, Section 2.0.0 Figure 8). Answer Narrow-u stairway

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

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

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

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

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8. What is a gooseneck (Page 10.6, Section 3.0.0)? Answer Curved part of a handrail

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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)

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

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

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

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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.

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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"

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15. What is the standard width range for a stair width (Page 10.8, Section 4.4.0)? Answer 36”- 44”

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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’

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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)

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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

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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

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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.

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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

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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

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