25 GA. Metal Studs

[H57]

I have been asked to look at an existing framed ceiling supported on partition walls. The walls are 3 5/8", 25 ga. drywall studs. Is there any documented load carrying capacity of these studs?

 

[jayrod12]

Clark-dietrich prostud is likely what is there (it's what homedepot has on the shelf)

Check here

Link

 

[H57]

Clark-dietrich has height limitations for lateral loads but there is no reference to the axial load carrying capacity. That is what I'm looking for.

 

[msquared48]

Call the manufacturer.

Mike McCann, PE, SE (WA)

 

[jayrod12]

Why is your ceiling carrying axial?

I would never allow 25 Ga in any sort of realistic load tranfer scenario.

 

[Ron]

Agree with Mike and Jayrod12.

25 ga is flimsy.

 

[XR250]

You will not find any axial load info even though you will get something - nothing you can count on, however.

 

[DaveAtkins]

You need to use the formulas in the AISI Specification. But I wouldn't worry about it, unless the ceiling is a storage mezzanine. If the ceiling is truly just a ceiling, then 25 GA studs will be adequate.

DaveAtkins

 

[KootK]

Check out this SSMA catalog kushal: Link

1) They designate anything less than 20 gauge as non structural.
2) They don't provide axial capacities for anything less than 20 gauge.
4) They do provide allowable interior wall heights for 25 gauge under various internal air pressures. Sometimes they're considering sections composite with the drywall. Presumably, a 25 gauge stud wall can at least support its own weight as axial load.

I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.

 

[Jerehmy]

how often are they braced.

 

[Jerehmy]

and the flange width. Are they C with lips or without lips

 

[Jerehmy]

I plugged it into my spreadsheets quickly and got about 950# allowable axial load if braced at 48" OC. This is assuming Fy = 33ksi and 1.25in flange width with lips.

Might be worth doing a thorough analysis if this is in the ballpark of what you need.