Cinder Block foundations

[Marcel R. Cyr]

Originally Posted by Brian A. MacNeish

For a house with average point loads and soils good practice would be:

the thickness of pad be 1/2 its horizontal dimensions and rebar installed. 36X36" does seem excessive for a house. Most I've seen are 24 x24 x12" or 16 x 16 x 8"

That is the normal I have seen around here with the exception it would be only 8" thick.

Marcel

[Brian A. MacNeish]

Originally Posted by mcyr

That is the normal I have seen around here with the exception it would be only 8" thick.

Marcel

For a 24x24" footing for a column, (say steel post), our codes would require a 12" pad thickness.

From the code:

Footing thickness would not be less than the width of the projection of the footing beyond the supported element.

i.e. 24x24" needs 12" thickness while 16x16" needs 8"

[Marcel R. Cyr]

And if one is lucky, you might have six little pieces of rebar actually tied together. ha. ha.

Marcel