Digging footings for extension 1m deep, But how wide?

Hi
I have been digging footings for rear extension. I know i have to go 1m deep, But how wide do they have to be?
450mm or 500mm i think.

Any help would be nice.
Cheers
SM

Comments

  • McAzrael
    McAzrael Posts: 917
    First Anniversary Combo Breaker
    Forumite
    I presume you're going to pour mass footings. Ask your building control office what they like. 450mm round here for single storey (normally) and 600mm for two storeys.
  • Yes single and mass pour. I had 450 in my head.
    But as you say i will check with building control to be on the safe side.

    Cheers
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