little neck help

[warwickben]

heres my plan,
i wanna build a seven string bass witht the same string spaceing as a fender jazz.

all i need to know right now is how wide should the neck be at the nut 12 fret and 24 fret.

[andvari7]

What you need is the string spacing at the bridge and the nut. Then add the three strings based on that info. There should be about 1cm from the edge of the board to the outer strings (5mm on each side, actually).

[ArtisFallen]

the way i do it is have the nut cut with notches in it, and i string kite string from the nut to the bridge on both the highest and lowest strings. I add the length of the extended edges of the nut to both ends and cut right down that line.

I guess you could use a chalk line to get a more acurate line too. man i wish i had thought of that before