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Classical Guitar Nails

Classical Guitar Nails: a Basic Primer

Do you even need classical guitar nails?

At some point in the life of every classical guitarist, we have to learn and make some sort of decision about our fingernails. We have to ask ourselves the question, “do I want classical guitar nails?”.

The question of nails is truly a personal one. Many people find it simply too inconvenient to maintain fingernails, even on one hand.  I have students in a range of professions that do not really permit long fingernails. And so they opt to play without them.

Programming, writing, medical professions, mechanics, and some of the more prototypical “manly” sales jobs all may come into some sort of conflict around having nails.

The point here is that classical guitar nails are not absolutely necessary to play classical guitar. You can choose to play without nails, and the world will keep spinning.In fact, traditional lute technique does not use nails. So there is a historical basis for playing without nails as well.

What nails do is allow you a much wider range of tone color on the instrument. You can have very lush, warm sounds, as well as very bright, metallic sound.

Start with the end in mind

The actual shape of the nail or length of the nail should be determined by what it ultimately needs to do.

My suggestions in this article are based on my views of technique and alignment. To find out more about those, you may like my post and video on the fundamentals of classical guitar playing.

Also, the unique characteristics of your unique fingers and nails also affect the ultimate shape and length of your classical guitar nails.Some people have very meaty fingertips. Other people have very thin tips that slope away from the nail at a severe angle. Some people have very flat fingernails, while other people’s can be very curved or hooked.

So suggesting that a particular length or shape work for everyone would be rather foolhardy of me. I would be easily proven wrong.

What happens at the string level

“It’s not the size or shape that matters, but how you use it.”

To understand how to shape your nails, you need to first understand how they activate the strings.Classical guitar nail shape

When the string is activated in a circular motion, the resulting sound is warm and beautiful.When the string is snagged or hooked, the string vibrates and more of a back-and-forth motion, which makes a sound that is somewhat brash and ugly.

So we want to activate the string in a circular motion.  To do this, the string needs to slide off of the fingernail as the finger moves through the string. If the finger nail snags in any way, it will produce a bad tone.

Technique plays a role

So to get the string moving in a circular pattern (instead of back and forth), we need to use the right technique.  You can brush up your right hand guitar technique with this free course.

In short, we push through the string, instead of hooking it and pulling up (which I call “bicycling”).Classical guitar bad technique

Embrace the process

You may not get your nails absolutely perfect the first time you shape them.  That’s fine.  With time you will get better at it.  Chances are, your ear has not developed quite yet to a point where you automatically know how your guitar sounds best and how your nails affect it.

This is a process, and one that will progress for all the years of your playing.  Feel free to experiment and play with abandon.

There will be times when you take off too much nail, or have too much or not enough of an angle to your nail.  There will also be times when your nails will get too long and you won’t realize that it could be better.  Doesn’t matter.  Your nails will keep growing, and you will have more opportunities to practice the art of classical guitar nails.


Let’s do it: Shaping your New Classical Guitar Nails

Use a file, not clippers

classical guitar nails

Tip: Keep your nails still and move the file.

One of the biggest mistake newbies make with their nails is that they try to clip them into a particular shape. This rarely ends well.  Instead, it’s more effective to shape the nails using a file.There are a number of different types of files on the market.

Personally, I use a metal file. But you can get great results from just about any shape of file.

shaping classical guitar nails

Metal files work great, just don’t try to take them on a plane.

On your mark, get set….

To start with, it may help to sit in a chair with your elbows resting on a desk or table.  This will keep your hands stable.

When you begin filing your nails, it’s best to keep your right hand (the hand with nails) still, and move the file with left hand.  Many right-handed people hold the file still and move the nail across it.  You will have more control moving the file.


“Relax, Charlie. I’ve got an angle.”

classical guitar nail shape

File nails from underneath, at an upward angle, instead of flat.

When we file our nails, we want to file from the bottom of the nail at about a 45 degree upward angle.  If you don’t know better, you will like file at a right angle to the edge of the nail.

The next angle you may want to start with is the angle from the corner to the peak of the nail.  Because we want the string to slide off the nail, we will create a sort of “ramp” from the (thumb-side, not pinky side) corner to the peak.

shaping classical guitar nails

Form a ramp that the string can slide off of.

Generally, you can start with about a 30 degree angle and go from there.  (I say 45 degrees in the video, but that is a bit steep.)  The angle at which your play the strings will affect this angle.  How you hold the guitar, and the angles of your hand and wrist play a part as well.  As I said, with time, you will better understand and be able to get things just right.  To begin, just go for it and see what happens.

It’s good to remember that you are trying for a particular effect with the nail and the string.  What the nail looks like is of no importance.  So instead of making it look like a “ramp”, instead make it feel like one when you play.

You will have to experiment to find the right length, but a good rule of thumb (no pun intended) is to have enough nail so that the string is activated in a circular pattern, but not so much that the nail catches on the string and snags it.  You want to still be able to feel the string with the flesh of your fingertip, as each note plays.

What about the thumbnail?

While the thumbnail may be longer, it plays by the same rules as the fingernails.   File from below, at an upward angle.  Create a bit of a ramp.  classical guitar thumbnail shape

I have found thumbnail shape to be far more forgiving than the fingernail shape.  As long as you have any thumbnail at all, you can generally sound alright.  Not so with the fingers.


Polishing comes next

Once you have shaped your nails, you have just one more step.  The file you use will leave scrapes and ridges along the edge of your nails.  You can feel them now, if you drag one nail over the edge of another.

To get rid of this texture (which will create bad tone) you need to polish your nails.  classical guitar nail paper

For this, my favorite product is a very fine sandpaper.  You can have a piece in your pocket at all times, and your nails will thank you for it.

To use nail paper, simply grind or file your nails with the paper.  Fold it, bunch it, whatever you like.

The end result is a glassy finish that sounds great.  You may be shocked and amazed at the differences you will hear coming from your guitar.  All professional players do this, and it really does make all the difference in the world.

If you want this particular paper, you can get it at StringsByMail.com (not an affiliate link).


Not into watching the full video?  Skim the transcript.

Over to you

Have you found the sweet spot with your nails?  Have any questions or thoughts?  I would love to hear them in the comments


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9 Responses to Classical Guitar Nails: a Basic Primer

  1. Basilio August 6, 2018 at 2:20 pm #

    Hi Allen,

    I wonder if the right hand technique should be different to the one shown in your videos, in case of not using fingernails.


    • Allen August 6, 2018 at 4:43 pm #

      Hi Basilio,
      Another great question. Thanks!
      I’m not an expert on playing without nails, so I’m guessing. But here’s my guess:
      The basic technique would be the same, but there would be small differences. I would think of the technique the same, knowing that there may be something that morphs due to the lack of nails.
      Here’s an article on creating tone using the tip joint, and I’ve seen this work well with and without nails.

      Also, lute players don’t use nails, so you can browse youtube and look at what they do. It’s basically the same technique I recommend, but with the right hand turned slightly more palm-up (supinated).

      I hope that helps a little,
      Thanks again,

  2. Peterkijn July 25, 2018 at 4:53 pm #

    Wrap a piece of sandpaper (320) downwards round the first string and hold it steady with your left hand.
    Try not to damage the lacquer.
    Play a-m-i several times over the sandpaper having the correct posture.
    You’ll see how the right angle for your hand should be.


  3. Rob MacDonald April 26, 2018 at 8:28 am #

    I wish you had given an expert opinion of what grit sandpaper to use… Advice online varies from 150 to 1500!

    • Allen April 26, 2018 at 11:16 am #

      Hi Rob, I link in the article to the paper I like. It’s 500 grit, but not all paper is alike. I’m not sure I would like the 500 grit of another type, for instance. Here’s the link again.

      Thanks much,

  4. Joaquin Kenyon March 1, 2016 at 7:50 pm #

    I just today saw online, actually I believe you link to this website >>> http://www.classicalguitar.org/2011/04/the-best-fingernail-tool-youve-never-heard-of/ from this I am learning about Micro-Mesh Pads & Crystal Glass Nail Files. Any knowledge and experience you can give on this Allen.


    • Allen March 3, 2016 at 4:56 pm #

      Hi Joaquin,
      I have seen that product, but haven’t tried it myself. So I really can’t weigh in on it. They’re basically different grit sandpaper on foam-core. I like good old nail paper, which, as you use it, becomes a finer grit. So in one little piece of paper that can go in your pocket, you have the whole spectrum from rough to fine.
      But honestly, there are a million ways to skin a cat (as they say), and if you find something to try, try it!
      All the best,

  5. Phil April 6, 2015 at 8:14 am #

    Hi Allen
    Love your work. after I have shaped my nails to the 45 degree edge I put one drop of liquid super glue on a surface and put a tooth pick in it to pick up a small amount of glue (as you know this is horrible stuff) and apply it to the 45 degree edge, and let it set then I burnish the edge with the blunt end of a small drill bit using a fair amount of pressure. I find this makes the tip of the nail a lot more dense and harder, I then continue to polish to glass finish with very high grit wet and dry paper, I find this stops the fussy bottom of the nil and you can use them a lot longer.
    I hope this is of interest.
    Best wishes Phil

    • Allen April 6, 2015 at 8:54 am #

      Thanks Phil,
      I also use the superglue, but typically only if I have a repair, or if my nails are getting too short from overplaying and I want to let them grow out a bit.

      I haven’t heard of the burnishing, but it makes sense.

      Thanks for sharing this!

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