DIY Doctor

Main navigation

Building a cavity wall on a single wall below

Postby knuckles » Thu Apr 07, 2011 11:05 am

Hello, Im moving my garage forward onto the side of my house and building above it as well. Due to the drive being narrow at the front I am going to build a single leaf wall for the garage. The wall above the garage will be cavity wall. I know this can be done by buidling pillars into the single wall below and then spanning them with lintels, but, what is the minimum width of a pillar for this type of job? And, would one pillar in the middle of the garage wall be enough? The single wall will be 6.3m long.
Any advice would be appreciated,
Rank: Labourer
Progress to next rank:
Posts: 1
Joined: Thu Apr 07, 2011 10:55 am

Postby welsh brickie » Tue Apr 12, 2011 6:16 pm

The lintol will have to be steel as the spans too long for 1 pillar.You can use CATNIC CN5XA box lintol the central pillar will need to be a minimum of 300mm wide the minimum bearing for a pillar is 150mm
welsh brickie
Rank: Project Manager
Posts: 2611
Joined: Sat Apr 12, 2008 7:54 am

Postby Perry525 » Tue Apr 12, 2011 7:35 pm

To make this work, you need to know the weight of the building and its contents.
You need to know what type of ground you are building on to work out the size and type of foundation.
One you have the information, only then can you work out how to support the load. Brick is very good in compression.
Rank: Site Agent
Progress to next rank:
Posts: 734
Joined: Fri Jul 06, 2007 7:35 pm

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