The guitar neck plays a supporting role in tonal characteristics of the instrument. The guitar neck blank works in such a way that it absorbs a little energy from the vibrating string and transfers down the string into the soundboard. Therefore it would be optimal to choose a hard and dense wood for guitar neck blanks. In the end it all comes down to the type of tone you would want for your guitar.
Wenge
A black hardwood with chocolate brown stripes, that is rigid and sturdy. Open grain, very hardwood with a rougher feel. With powerful middle tones and warm lows, this wood creates fantastic bass necks. For added brightness, use it with an ebony fretboard. Neck shafts are the most common application, although they can also be utilised as a coarse fretboard. This wood is generally unprocessed. There is no need to finish. Wenge, like Rosewood, cuts some high overtones while echoing more fundamental mids and low mids thanks to its multi-density "stripes" that remove a little more of the mid and low mid overtones.
Maple
This is the typical neck wood for guitars. Dense, rigid, and robust, with excellent durability and stability. The voice has a vibrant tone. The most typical wood for the neck of an electric guitar. Maple has a consistent grain, is robust and stable, and reacts to environmental changes less than other hardwoods. It has a highly reflecting tone that concentrates more energy on the body wood. Bolt-on Maple necks, on the other hand, have less of an impact on the tone of the instrument.
Koa
With a somewhat sweeter top end, the tone is midway between Mahogany and Maple. When paired with an Ebony fingerboard, it sounds exceptionally nice.
Rosewood
The highs will be smoothed out and the sustain will be increased with a Rosewood neck. Greater sustain is frequently accompanied by a brighter top end. Rosewood, on the other hand, mutes the high frequency overtones while still retaining the complexity of mid and low mid overtones.
Mahogany
Because of its uniform density, mahogany provides for a highly sturdy neck, decreasing the possibility of warping. The open pores make the neck more sensitive than a maple neck, although it isn't as thick. Mahogany will absorb a bit more of the string vibration than Maple, somewhat compressing the attack and highs. Honduran Mahogany is the common name for this wood. This is the most common wood used in Gibson guitars. Warmer, richer guitar tones are ideal. An open grain wood needs additional finishing work to close the open pores.
