Official Luthiers Forum!

Hello! Everyone,
I am following the hana lima plan to construct my current build.
I have a question about the thickness of the neck.
In their concert and tenor plans, they both call for 7/16" (0.4375") for head stock all the way to the 15-degree head angle break, then the thickness gradually increases to 5/8" right in front of the heel.

I followed this to carve two concert necks. But I felt that 0.4375" at the head angle break seems to be too thin. I am afraid that the neck might break at this spot down the road.

These two necks, one is made of spanish cedar, the other is sitka spruce. Scarf joint....and no carbon fiber reinforcement.

I am wondering whether this is something I should be worry about.
Should I increase the thickness around that area next time?
I hope my description makes sense..
Thank you, I really appreciate your thoughts.

For concert necks the thickness depends on type of tuners you will use.Most of the time my headstocks are about 1/2in ,if tapered, from 9/16in to 7/16in, Haven/t seen the hana lima plans , but I would use them as a guideline. see my videos/tutorials on uke construction . I would use spanish cedar , but would skip the spruce, if so, you can strengthen the spruce neck with a much harder wood insert e.g. 3/8in by 1/4in white oak to add more strength and rigidity.It also partly depends on the type of FB you plan to use?? http://www.ateliertomi.com ps headstock can be thickened by adding 2-3mm veneer .100.-120.