Rebars for foundations

[Londoner2]

Can any one tell me how many rebars 3m x10m are needed for singel storey extension foundations to a depth of 1.4m?

 

[bobasd]

do you mean 3mx10mm rebar?
who says you need rebar or any other kind of steel?
why are your trenches 1.4m deep?
are you working to approved drawings?

 

[Londoner2]

do you mean 3mx10mm rebar?
who says you need rebar or any other kind of steel?
why are your trenches 1.4m deep?
are you working to approved drawings?

yes 3m x 10mm rebar, i just want to increase the strength of the footings, better safe.

I want the trenches to be 1.4m due to some subsidence due a tree that was removed back in 2014, due to root shrinkage, any way the BCO could make it go deeper.

Drawings done by architect, full plans submission to BC.

 

[^woody^]

None.

And you can't just make up some random amount and hope or actually does something.