Stairs – layout, terms, and examples



Stairs – Terms, Layout and Examples

Define the following terms:

Rise

Run

Risers

Treads

Stringers

Nosing

Landing

Balusters or Spindles

Handrail

Kicker

Hanger

Skirt board

Newel post

Label the Parts of the Stair diagram below (Use the terms from above)

For all stair layouts you must know:

# of risers and height, # of treads and depth

Steps:

From your rise and run of your stairway opening, you will be able to determine 4 things: # of risers, riser height, # of treads, and tread width

1. Divide rise (in inches) by ______

--round answer UP to nearest _______________________

**** (THIS IS THE # OF _________)

2. Divide total rise by # of risers

**** (THIS IS THE _______________)

3. # of risers __________ one = (# of treads)

4. Divide run by # of _______.

*** IF YOUR RISER HEIGHT OR TREAD DEPTH DO NOT FALL INTO THE ACCEPTABLE RANGE YOU MUST INCREASE OR DECREASE THE NUMBER OF RISERS!**

To turn a decimal into a fraction

1. Multiply the decimal amount only by 16 (to get sixteenths of an inch)

2. The new whole number is the new numerator (top half of the fraction)

Stairs guidelines

2 Risers + 1 Tread ~ ___________

Treads should be about _____________________wide

Risers should be about ____________________________ high

Minimum headroom from stairs to any point above should be ____________

Nosing should not exceed ________________

Minimum stair width is __________________ (stairwell opening to be 39”)

The preferred angle of a stairway should be between ______ and ______ degrees.

When laying out the first riser _______________ should be deducted from the bottom.

If plywood is used as the hanger how much should be taken off of the top of the stringer? _______________________

While only two stringers are required, ________ stringers are considered best practice. Stringers are usually made from _________________

A _________________ is used to establish the height of the _____________

In Rock County, handrails must be _____________ in accordance with building and fire codes.

Handrails help people up and down the stairs

Spindles help prevent ________________________ and must be no further than ___________ inches apart.

When attaching the treads and risers using ___________ and ____________ is the best practice.

Name:______________________

Stairs Assignment #1

Due Tomorrow at the beginning of class!

Using the formula given convert the following numbers into fractions to the nearest 16th of an inch. (Reduce if necessary)

1. 12.375 ___________

2. 0.125 _____________

3. 1.954 ______________

4. 6.667 ______________

5. 8.554 _______________

6. 3.764________________

7. 9.900_______________

8. 1.0625_______________

9. 0.5625 ______________

10. 4.444 ________________

Using the given rise and run, find the: Number of risers, riser height, number of treads, and tread depth.

11. Rise 3’-0” Run 3’-6”

12. Rise 3’-8” Run 4’-2”

13. Rise 8’-4 ½” Run 11’-0”

14. Rise 10’-0” Run 12’-0”

15. Rise 12’-1 ¼” Run 14’-3 1/16”

ANSWERS:

11. __________________________________________________

12. __________________________________________________

13. ___________________________________________________

14. ___________________________________________________

15. ____________________________________________________

................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download