DIY Doctor

Main navigation

Lintel in Gable Cavity Wall for new First Floor Doorway

Postby jr2981 » Fri Mar 10, 2017 3:46 pm


i am looking to add a new 1st floor doorway through the old gable end wall of my house into an extension, this will involve setting of a 1.2 long cavity wall lintel to give a 900mm opening. I've been reading the BS5977 standard for lintel loads to determine what loads i need to consider and as this is on the 1st floor i think i only need to consider the roof, masonry and self weight of lintel, the latter two are easy but calculating the roof loads is very confusing, has anyone completed calculations for a similar scenario??
Rank: Labourer
Progress to next rank:
Posts: 2
Joined: Thu Feb 09, 2017 12:50 pm

Postby arbco » Sat Apr 01, 2017 8:21 pm

In a gable it's unlikely that the floor or roof (except a purlin) will impose any loads. Suggest two box lintels or concrete lintels will be ok as it's only a small opening.
Rank: Ganger
Progress to next rank:
Posts: 66
Joined: Fri Jan 11, 2008 9:19 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