Stud Effective Length

[LearningAlways]

Question about stud (HCA or HSA) lengths.

PCI and others include the 1/8" burnoff when calculating the effective length.

However, stud manufacturers include the burnoff length when ordering material. Below is a great diagram from a website I've used for reference.

Lengths ordered include what would be burnoff:

If I ordered a 6 1/8" stud and the first 1/8" was burnoff then I could consider 6" as the actual stud length.

When you see a 6" stud on a plate and are asked to design it, do you start with 6" and "burnoff" an additional 1/8"? Or do you assume that the 1/8" has already burned off? And (this is new to me) it sounds like it should be a 3/16" burnoff for studs larger than 1/2"?

 

[HTURKAK]

The proposed length reduction for 1/2 dia due to weld is 1/8 in. If we assume tpl =1/2 in , head thickness =0.312 in

I would calculate hef = 6.125 in. – 0.312 in. + 0.5 in. – 0.125 in. = 6.188 in. and round to hef = 6.15 in.
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He is like a man building a house, who dug deep and laid the foundation on the rock. And when the flood arose, the stream beat vehemently against that house, and could not shake it, for it was founded on the rock..

Luke 6:48