nut width terminology?

[seventhson]

Someone asked me if the neck on my P bass was "C(1 3/4")-neck".

I replied it was 1 5/8" with a C neck profile LOL. I didn't realize that he was probably referring to "C" as a synonym for 1 3/4".

I've never seen this terminology before. It's certainly not used with guitars. Are there letter categorizations for different nut widths when referring to basses? Is it common? Just curious.

 

[lefty007]

Yes.

For Fenders:

A-width neck: 1.5" (1/1/2")
B-width neck: 1.62" (1-5/8")
C-width neck: 1.75" (1-3/4")

Then regarding neck profiles/shapes, you have:

C
Shallow C
D
V
Soft V

Etc. Each manufacturer can come up with their own neck profile description, but there are certain common shapes in the industry:

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