Do I need an RSJ?

Postby deeley_s » Mon Oct 06, 2008 7:12 pm

I have an internal wall that sits slap bang in the middle of the joist run across the house. It's just plasterboard and batten - clearly not intended to be structural - but our bath and my kid's metal bed are either side of it. My builder says it isn't structural and can come out, but I'm wondering if an RSJ or a wooden beam might be a good idea because of the load above it. Any views ?

Posts: 1
Joined: Mon Oct 06, 2008 7:01 pm


Simply Build It

Postby eljaybee » Fri Oct 10, 2008 4:55 pm

it all depends upon the size of the joists, their spacing and the distance that they span.
Posts: 78
Joined: Sun Jun 22, 2008 11:53 am

Postby LCL » Sun Oct 19, 2008 6:52 pm

Following on from eljaybee's comments. You'd need to check the trada span tables for joist sizes as they are no longer in the building regs (Part A 2004). As a rule of thumb the depth of floor joists should be half the span plus 1. A 12' span therefore = 7" deep joists (all on the assumption that joists are 2" wide).

Be careful as stud partitioning can still be structural.

Hope this helps

Posts: 139
Joined: Tue Sep 11, 2007 2:40 pm

Postby TheDoctor5 » Thu Jan 22, 2009 9:39 am

Last year 64% of the questions asked in our forum were answered within our DIY project pages at The project pages are now separated alphabetically and your answers are accompanied by diagrams and the ability to see, and buy, the tools and/or required to complete your project. Use our search box to look for your answer and save a great deal of time and money!
Site Admin
Posts: 1382
Joined: Tue Jan 20, 2009 9:17 am

Display posts from previous
Sort by
Order by


  • Related Topics