Non bearing interior wall detail > 12' 1

[HTElectrical]

Using 2003 IBC will a 13' tall interior non-bearing wall using the following material pass code?

1. Studs braced with 5/8 gyp board ea. side.
2. 25 ga 3 5/8 tract and stud.
3. Bracing @ 4'-0" O.C. staggered 3 5/8 25ga.

The 2 walls are for a restroom addition and are attached to an existing demising wall and exterior wall. Wall lengths are 7'2" and 6'4". Ceiling is 25ga 16" O.C. @ 8' with 5/8 gyp board.
Thanks in advance!!!!!

 

[twinnell]

Go online and look up "The Steel Network" or "MarinoWare". They should have limiting wall height tables available. The tables I have say no. You need to either use a shorter wall or a heavier gage stud...say 22ga.

 

[HTElectrical]

I checked on MarinoWare under Limiting Heights Tables (Composite) using a 3 5/8" member 358DWS25 5 PSF, L/120, and 24" O.C. it shows 13'9". I am missing something or will this pass? The city engineer said she was going to send over a new detail for walls over 12' and she sent the same detail that I have stating for H < 12' AND BRACING < 8'.

 

[twinnell]

I wasn't using the composite wall table. We don't use that table for our designs. We also don't use L/120 for deflection. We use L/240. IBC 2003 says L/120 is acceptable for non-brittle finish. According to that table, the wall will work. Be sure to use a deflection track at the top of the wall if you are attaching to the bottom of beams or a floor system.

 

[HTElectrical]

I just received an updated for the CLV NV building department stating that 20ga @ 24" o.c. is good up to 16'. I guess I will just change the drawings and give my customer a change order.

 

[UcfSE]

Why is an electrical person designating walls?

 

[HTElectrical]

I was wondering if someone was going to ask me that. I used my cad artist to draw the plans for this small TI. We are a general contractor also, but mainly due commercial electrical. Scope of work was only to close an opening in an existing demising wall, add restroom, 200A panel, and re-circuit elec. to new panel. Job was too small to bring in an architect and I was told the ceiling was originally 11'. Long story short, found out ceiling was 11'10", and the typical framing details that I am familiar with wouldn't pass. Since I had to specify what type of professional I am, I figured I would tell the truth, instead of posing as a Structural Engineer just to ask a ? Hope this isn't a problem.

 

[UcfSE]

I think we can all appreciate honesty, especially since the question itself woud have given you away as non-structural.

There is a problem though if you are practicing out of your area of expertise, partiularly if you sign and seal this work. I hope that's not the case. It's hard to say with an interior non-load-bearing wall, but is it worth it in the end? I think it's worth having a professional check what you are doing. In the end it protects you, the client and your company.