step up footing from existing foundation

Postby LAB » Sun Aug 12, 2012 7:06 pm

Hi all
Digging foundation for single floor extension, originall footing of 1950s house is 54cm (21ins) from DPC to the top of a 150mm (6ins) concrete base, total of 69cm (27ins) was going to carry on to achieve the same depth but found the ground hard/solid after digging about 45cm, (18ins) is there any way that the BI will allow the footing to be stepped up with the "rule of thumb" formula say 30cm (1 foot) or should I be happy with the depth, I could call him out for advice but I would be glad of some past experiences. thank you.
Rank: Apprentice
Progress to next rank:
Posts: 19
Joined: Wed Apr 18, 2012 4:32 pm


Simply Build It

Postby welsh brickie » Mon Aug 13, 2012 5:03 am

that will be upto the building inspector no one else.In my experience you need to dig down to the original foundation.But call him out he might say ok.
welsh brickie
Rank: Project Manager
Posts: 2198
Joined: Sat Apr 12, 2008 7:54 am

Display posts from previous
Sort by
Order by

  • DIY How to Project Guides

  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!


  • Related Topics