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Non bearing interior wall detail > 12'

Non bearing interior wall detail > 12'

Non bearing interior wall detail > 12'

(OP)
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!!!!!

RE: Non bearing interior wall detail > 12'

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.

RE: Non bearing interior wall detail > 12'

(OP)
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'.  

RE: Non bearing interior wall detail > 12'

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.

RE: Non bearing interior wall detail > 12'

(OP)
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.

RE: Non bearing interior wall detail > 12'

Why is an electrical person designating walls?

RE: Non bearing interior wall detail > 12'

(OP)
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.

RE: Non bearing interior wall detail > 12'

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.  

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