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Which guitar neck shape fits your hand? U for large hands, Flat C or C for small hands, V for a vintage grip. How each profile feels and which kits have it.
Quick answer: which neck profile fits your hand?
Want a U, V or Flat C neck? Our Custom Shop can make kits with a U, V or Flat C neck on request.
If you have read "Neck shape: C" in one of our product specs and wondered what it means for your hands, this guide explains the four guitar neck shapes (profiles), how each one feels, and how to pick one for large or small hands.
A neck profile is the shape of the back of the guitar neck: the part that sits in your palm. Cut a neck in half and look at the cross-section, and the profile is the curve you see.
On an electric guitar, the profile has no measurable effect on tone. What it mainly changes is comfort, and comfort changes how cleanly you play.
Three other measurements are often confused with the profile. Together they decide how "big" a neck feels:
The nut is the small slotted strip, usually bone-colored, where the strings leave the headstock and cross onto the fretboard. Nut width is how wide the neck is at that point. It sets how far apart the strings sit: a wider nut gives each finger more room.
Common nut widths are about 42 mm (1.65"), 43 mm (1.69") and 44.5 mm (1.75") on electric guitars, and 48 mm and wider on classical guitars. A few millimeters sounds small, but spread across six strings it is easy to feel.
On our kits: most Guitar Kit World kits have a 42 mm nut; a few models run from 40 to 48 mm. Each kit lists its nut width in the product specifications.
How thick the neck is, from the top of the fretboard to the back of the neck. A deeper neck fills a large hand; a shallower one is easier for a small hand to wrap.
How curved the playing surface of the fretboard is. It affects string bending and chord comfort, not the feel in your palm. More on fretboard radius below.
Feel: an even, oval curve of medium depth.
Best for: most hand sizes, beginners, and players who switch between chords and lead.
At Guitar Kit World: the standard neck on our stock kits. Shop in-stock guitar kits.
Feel: a shallower, flatter version of the C. The slimmest of the four.
Best for: small hands, short fingers, fast lead playing, and reaching wide stretches.
At Guitar Kit World: available on request. Order a Flat C neck from the Custom Shop.
Feel: deeper than a C, tapering to a ridge down the middle of the back.
Best for: players who wrap their thumb over the top of the neck, and blues or classic rock players who like a vintage feel. The ridge gives the thumb a consistent home.
At Guitar Kit World: available on request. Order a V neck from the Custom Shop.
Feel: the thickest and roundest profile, with full "shoulders" on both sides. Often called a baseball-bat neck.
Best for: large hands and long fingers, players who rest their palm on the neck, and rhythm players who want a solid grip.
At Guitar Kit World: available on request. Order a U neck from the Custom Shop.
The neck profile is the back of the neck, the part in your palm. The fretboard radius is the top: how curved the playing surface is from the low E side to the high E side. Your fingertips feel the radius; your palm feels the profile. Together they decide how a neck feels.
Radius is measured in inches (or mm). Imagine the fretboard is cut from the edge of a large circle: the number is that circle's radius. So a smaller number means a more curved fretboard, and a bigger number means a flatter one.
Unlike neck profile, there is no agreed rule linking radius to hand size. Many players with smaller hands find a more curved board easier for barre chords, while players who bend a lot prefer flatter boards whatever their hand size. Treat radius as a feel preference: profile does more for hand size than radius does.
Most of our guitar kits have a 14" (356 mm) fretboard radius: a flatter, modern board that makes bends and low action easy and still feels comfortable for chords. Our bass kits typically use 12" (305 mm). You will find the radius in each kit's product specifications.
Kit builder tip: when you set up your kit, adjust the individual bridge saddles so the strings follow the same curve as the fretboard. A cheap radius gauge makes this quick: rest it on the strings and raise or lower each saddle until every string touches the gauge.
There is no measurement that tells you "your hand is X, so buy neck Y". Posture, arm and wrist angle, and the neck you learned on all play a part, and almost every new player feels clumsy at first whatever the neck. Still, these guidelines are a good starting point:
The hardest thing with small hands is reaching across frets. A deep neck uses up part of your hand span behind the neck. A shallow Flat C or C leaves more of your reach for the fretboard. Pair it with a narrower nut width if you can.
Large hands often cramp on a thin neck, and that tension makes playing tiring. A U-shaped neck fills the hand so you can relax your grip. Width matters too: a wider nut gives large fingers more room between strings, which helps most with fingerstyle and open chords.
The C is the safe choice for a first build, and it is what most players learn on. You can always order a different profile on your next kit once you know what you like.
A U-shaped neck. It is the thickest profile, so a large hand can hold it without cramping. A wider nut helps too, because it spaces the strings further apart.
A Flat C (Modern C) or a standard C. They are the slimmest profiles, which leaves more of your hand span free to reach across the frets.
The C-shaped neck. It suits most hand sizes and playing styles, and it is the standard neck on our stock kits.
A Flat C is shallower and flatter across the back than a standard C, so it feels thinner and suits fast playing and smaller hands.
It feels different at first, but players who wrap their thumb over the top of the neck often find it the most comfortable, because the ridge gives the thumb a consistent spot.
A D shape is a modern profile with a flatter back and fuller "shoulders" at the edges than a C. It feels wide and solid but not deep, so it suits players who want a slim neck with more grip. Of the four profiles we offer, the Flat C is the closest; if you want more shoulder, ask the Custom Shop about a U.
The nut is the slotted strip at the top of the fretboard, where the strings leave the headstock. It holds the strings at the right spacing and height. The nut width is the width of the neck at that point.
42 mm (1.65") is on the narrower side of standard for electric guitars, which makes it comfortable for most hands, including smaller ones. If you have thick fingers or play fingerstyle, a wider nut around 44.5 mm or more gives more room between strings.
There is no fixed rule. Many players with small hands find a more curved board (7.25" to 10") easier for barre chords, but the neck profile matters more: a Flat C or C neck does most of the work for small hands. Our kits' 14" radius is comfortable for most players.
No. Radius is the curve of the fretboard on top, under your fingertips. Profile is the shape of the back of the neck, in your palm.
Not on an electric guitar in any way you can measure. Tone and sustain come from the wood, construction, pickups and hardware. The profile changes comfort, and a comfortable neck helps you play cleaner.
Yes. Our stock kits use C necks, and our Custom Shop builds kits with a U, V or Flat C neck on request.
You can sand a neck slimmer, but only experienced builders should try it. Sand too far and you can reach the truss-rod channel and spoil the finish. If you want a different shape, it is easier to order it from the Custom Shop.
Pick a U neck for large hands, a Flat C or C for small hands, a V if you like a vintage thumb-over grip, and a C if you are not sure. Then remember that technique matters more than any spec: practice and repetition will do more for clean chords and speed than any neck shape. Ready to build one that fits your hands? Shop in-stock guitar kits or design yours in the Custom Shop.
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