1. •Connecting to the Foundation & Bearing
Module Learning Outcomes:
Module Contents:
MODULE 11 – Floor Framing
•Posts and Beams
•Floor Joists
•Connecting to the Foundation & Bearing
•Doing the Twist?
•Openings & Stairs
•Interior Walls
•Cantilevers & Blocking
•Subfloor
Module 11
ARCH – Architectural Studio 2

2. Posts and Beams
Post: vertical support for beam
Beam: horizontal framing member that supports load from framing members (joist, trusses, rafters)

3. Posts and Beams

4. Floor Joists Wood joists Note joist hanger

5. Floor Joists Wood joists Engineered wood
Quick and easy to work with, saving time + $
Protect from weather when storing
Very long spans

6. TJI for roof…

7. Engineered Timber Floor Joist
Floor Joists
Engineered Timber Floor Joist
Engineered wood + steel
Pre-engineered = time = less site waste
Less chance of losing structural integrity from cutting holes in web
Easily run services + wood nailing face for ceiling + deck

8. Floor Joists
Open-web steel joist
(Eames house, by Charles
Eames Pacific
Palisades California)

9. Doing the Twist?
Material between framing members (continuous) to evenly distribute loads between members
Helps to keep framing members from twisting
Diagonal bridging can be wood or metal
Brace joists mid-span

10. Connecting to the Foundation & Bearing Most common and inexpensive way

11. Connecting to the Foundation & Bearing
Below: a double 2x6 sill has been secured with anchor bolts
2x10 floor joist at 16”o.c. (38x235mm, 400mm o.c.) are toe-nailed to them
A strip of sealant is seen between the wood and concrete
Back-filling is not done on the outside of the basement until the floor framing is in place to serve as bracing

12. Projections Not to exceed 400mm (16”) for 38x184mm (2x8) joists
OR 600mm (24”) for larger joists
Should not carry loads from additional floors – unless they are engineered
Check out this video explaining how to reinforce TJIs.

13. Openings & Stairs

14. Subfloor / Sheathing Not ‘sheeting’ – SHEATHING!
First material covering the framing members (roof, floor and walls)
Plywood
OSB
4x8 sheets

15. 2nd floor

16. Interior Walls
Steel studs are flimsy until the drywall is attached and are non-loadbearing
Wood studs are better for hanging things like cabinets from and can be loadbearing.

17. Interior Walls Make sure that you include headers above any large
door openings
Posts can be made by
combining several studs –
make sure that you support
them from below!

18. Open spaces + glulams

19. Open spaces + glulams

20. Oh and…

21. Oh and…

22. Oh and…

23. REVIEW… Come up to the board and identify missing elements
used to frame a
floor in this
drawing:
Module 11

24. Example

25. Required Reading Reminder:
Course Reader:
Canadian Wood-Frame House Construction – CMHC:
“Floor Framing” p
“Stairs” p
Module 11
ARCH – Architectural Studio 2

26. Sources:
Module 11
ARCH – Architectural Studio 2