Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Residentail Load bearing wall removal

Residentail Load bearing wall removal

Residentail Load bearing wall removal

I would like to remove a ceiling load bearing wall that supports a 24 foot (span) by 15 foot room. The 2X8 inch ceiling joists run along the 24' foot span and are blocked and covered by 3/4 inch ply in the attic where there is very light storage. eg Xmas stuff

I have footings in the basement to carry the load down through the first floor via a 2X6 stud wall to the footing.

My hope is to use 3 or 4 2X6s as a beam. or can I make a "flitch-beam" from 1/4 x 6 inch flat steel sandwiched between 2 2X6s.

comments or questions appreciated,


RE: Residentail Load bearing wall removal

You need to know the design of your footing(s) and also to calculate the loads that will be transferred from the roof and storage area above to your new beam.  Once you know these loads, you can design the beam.  once you know the design of the existing footing and the soil bearing capacity beneath the existing footing (or just use a conservative number), you can decide how you would like to support the beam.  If you have a continuous wall footing now, you may have to enlarge the fooring at locations of isolated columns that will be used to support the new beam.  You also need this information for shoring purposes while removing the load bearing wall.  I hope this helps.  Good Luck!

RE: Residentail Load bearing wall removal

Thanks for your advice

I was hoping that the 2X8 cieling joists, ceiling drywall and plywood of a span 24 foot by 15 foot room wouldn't require alot of beam/support. AND mainly because I do not know the math to calculate these loads. The roof does not seem to be supported by the bearing wall.

your help much appreciated, Thanks again

RE: Residentail Load bearing wall removal

Hire a local structural engineer to calculate the required beams and footings.

RE: Residentail Load bearing wall removal

What?! no formula, no do it yourself suggestion? other experiences?

Go hire a guy!?

thanks for the thread ending insight

RE: Residentail Load bearing wall removal


As a practicing structural engineer, I have been called in several times by other "hard working guys" who thgought they could do the similar thing you are proposing.  The difference between them and you, is you asked first and someone suggested to you hire a structural engineer, these other guys, waited until after it was built and had problems.  

Since I was called in afterwards to clean up after the elephants, my fee was about 2.5 times what it would have been if they called me in up front. And lets not talk about the re-work costs and the "wife" factor.

So since you are a hard working guy, you should waste your money to hire someone (and pay them about 2 times what it woulkd cost) to fix your mistake.

So while it sounds like a "brush-off" to go hire someone, it is the best recommendation anyone could give you.  

RE: Residentail Load bearing wall removal

A good, creative structural PE can save you many times his/her fee by showing you the best solution.  In this case, perhaps sistering the joists would be stiffer and cheaper.

Deflection almost always governs.  An upturned beam may work.  6" members can rarely span 24' without sagging too much, even if made of "unobtainium".  Flitch beams are inefficient, roofs are complex, plaster is brittle...

I've said too much, hire a good engineer and save both money and aggravation.

RE: Residentail Load bearing wall removal

For one thing a structural engineer will be able to tell you what kind of deflections you will see in your structure due to the removal of a continuous supporting bearing wall.  The deflections may contribute to ather areas where cracking and perhaps additional loading could be of concern.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close