Never shopped for a new neck, here is my check list for you. Get your hands on a good dial caliper one that reads both inches and millimeters, (you need to know both now days to get the sizes you want when shopping for parts) Go to a local guitar store. Feel the necks, take note of the ones you like and make measurements. I had all these measurements and still got skunked. Nut width, 1st fret depth 12th fret depth. Note the fret size you like. Look them up on the manufactures web site, they give fret size on the model specs page. Try and get a drawing of the back profile so you can measure it. Do you like a rounded off edge or what is called a rolled edge on the fret board or flat. Do not and I mean do not!! give in to the, “This is our most popular profile and radius, this is our number one seller profile”. Find the profile you like, find the radius you like and by George stick to it. Stay away from stainless frets if you plan on doing your own fret work, level, crown and polish, stainless frets are tough. Unless like me you want something that does not exist. See, I want a brand new, licensed Fender Strat neck with a D back profile about .086 at the 1st fret, .096 at the 12th 1 11/16 nut width, 9.5 to 12 compound radius, heavy rolled over fretboard, 10mm tuner holes, unbleached pre-cut and polished bone nut, Flamed Maple neck wood, Brazilian Ebony veneer fretboard , 21, 6150 EVO gold frets, that have been leveled crowned and polished, Maple wood side and face dots, Ebony skunk stripe, head adjust single action truss rod, tinted satin nitro finished neck for $29.99 w/free shipping and a life time warranty. Come on, you got to laugh at that. That would be a great neck and a good deal at $507.00.
Wood type and thick verses thin necks. Here is where I'm am going to take a lot of heat. I know it, I know it. Profiles and wood, is there a difference in the sound. No, there is no difference in the sound, for us bedroom heroes there is not. Thick necks have one good thing going for them. You can sand the back profile down to your personal preference over time till you get it right where you want it. For most of us bedroom guitar heroes, we will never tell the difference between a Mahogany, Rosewood, Ebony, Pau Ferro or a Maple board sound anyway. Why? We pedal up the amp for a tone we want, very few let the guitar make the amp sound good, it's the final out the speaker sound we are shooting for. After 3 or 4 pedals your neck wood is lost in the fuzz anyway. So for that neck you want, just pick the color wood and the feel you like.
Neck wood verses wear. I think we all like the look of a well worn Maple neck. It just says, “I'm a cool guitar”. Maple necks do get a wear pattern as the finish wears down, and I think it looks cool. Rosewood gets a wear divot and it is noticeable only if looked at from an angle. So if you are concerned about fretboard wear go with Maple or Ebony. I have not seen any Pau Ferro fretboards old enough to say, one way or the other.