Stair Building Activity

1. BUILDING STAIRS
WITH
CUT-CARRIAGES
GROUP MEMBERS: (2 or 3)
_______________________
_______________________
_______________________
STUDENT
GROUP
ACTIVITY#1
ACC

2. ACCE

3. MATERIAL & TOOL LIST:
• 1 pc of 2 x 10 x 5’ per student in the group
• Scraps of ½” plywood or OSB and scraps of 1½” thick stock
• Scrap piece of 2 x 4 and ¾” or ⅝” plywood
• Framing Square & stair gauges
• Tape Measure and pencil
• Circular saw & hand saw
• Hammer & nails or driver & screws
ACCE

4. ASSIGNMENT #1:
 Click on the speaker icon on slide #1 for audio instructions
 Complete the stair calculations on the next slide
 Each group member must cut his or her own carriage
 Replace the photos in the remaining slides with photos of your
project at each stage of construction
 Each group member will take a photo with his or her completed
carriage - signed and labelled
ACCE

5. STAIR CALCULATIONS:
1. Total Rise = 3’ 2⅛” = ________________” ( Given)
2. # of rises = _______________________ = _________.
3. Unit Rise = ________________________ = _________.
4. Unit Run = ________________________ = _________.
5. Tread width = _____________________ = _________.
6. # of Runs = _______________________ = _________.
7. Total Run = _______________________ = _________.
ACCE

6. Framing Square with Stair Gauges
set at the correct positions
ACCE

7. COMPLETED CUT CARRIAGE
ACCE

8. UNIT RISE & UNIT RUN
ACCE

9. STAIR TRIANGLE
ACCE

10. TREAD, NOSING, & RISER BOARD
ACCE

11. BOTTOM RISE & KICKER
ACCE

12. TOP TREAD & HANGER BOARD
ACCE

13. ALGONQUIN CENTRE for CONSTRUCTION EXCELLENCE
ACCE