S[read Footing Design by Part 9 of the Ontario Building Code

[ajk1]

Is there anywhere in Part 9 of the Ontario Building Code where it says how to determine the required thickness of a spread footing under a pier? All I can find so far is a table giving the required area, but not the thickness. Is there any other reference that would give this information for residential (cottage) type structures? When I check it by Part 4 of the Code, the footing is too thin (7"; Part 4 (CSA A23.3 Plain Concrete) requires 8" min for an unreinforced footing).

 

[CANPRO]

ajk1, I don't know about the OBC, but in NBCC 2010, reference section 9.15.3.8 (I assume OBC is similar). Minimum thickness is the greater of 100mm or the width of the projection of the footing beyond the supported element.

 

[jayrod12]

Damn. I just gave this reference in your other thread.

 

[ajk1]

ok, thanks. I missed the Code clause. Thanks very much. Much appreciated.