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Home : Tools : Straightedges : String Spacing Rule

String Spacing Rule

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Get accurate string spacing without calipers, calculators or shop rulers.

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String Spacing Rule

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Our laser-etched stainless steel String Spacing Rule quickly finds the right spacing for just about any stringed instrument. It does all the math for you: proportional slot spacing automatically compensates for string diameters, from treble to bass, so the thicker strings won't seem crowded to the player.

The problem is: if you space the strings equally, they don't feel equally spaced. The thicker bass strings seem crowded together. Each gap between strings has to be slightly different to feel right to the player. How do you calculate this? The String Spacing Rule takes care of it, for guitars, basses, mandolins, and banjos.

Fast. The String Spacing Rule is slotted so you can quickly mark the string positions onto the nut. Use a scribe instead of a pencil, and it creates extremely accurate starter grooves for your nut slotting files.

Easy to use. Mark the two outer string positions onto the nut. Slide the rule over the nut to find a set of slots that matches your two marks. Now just scribe or pencil the string positions onto the nut! No measuring, dividing or calculating — the rule does the math for you.

Accurate. The rule's slots are laser-cut in a continuous scale that wraps around both edges of the rule (our thanks to luthier Kevin Ryan for creating this tool). Proportional slot spacing subtly compensates for the diameters of the individual strings, from treble to bass, to give the right feel and playability.

Not just for nut slotting. You can use the String Spacing Rule to notch Tune-o-matic bridge saddles, to lay out bridge pin holes, and when notching archtop guitar, banjo, mandolin and violin bridges.

The String Spacing Rule is made of laser-etched flexible stainless steel that conforms to flat or arched surfaces. Instructions are included.

The String Spacing Rule is included in the Essential Nut Making Tool Kit, which has all the basic tools you'll need for shaping, string-spacing, slotting and fitting string nuts like a pro.

Using the String Spacing Rule for guitars and mandolins
Getting the best string spacing on guitars, mandolins... everything!
Using the String Spacing Rule for guitars and mandolins Read more

In this issue:
Erick Coleman uses Kevin Ryan's proportional string spacing rule for more jobs than Kevin ever expected: 12-strings, mandolins, bridge saddles... Plus: an explanation of the difference between equal spacing and proportional spacing.

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 Ratings and reviews
String Spacing Rule
String Spacing Rule
5 out of 5 stars
Based on 126 ratings Write a Review
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Displaying 51 – 60 < 1  ...  5  6  7  ...  13 >
5 6-20-2012
A Real Life Saver!

I don't know how I ever lived without this wonderful little rule. My long-time friend and mentor Dave Nichols of Custom Pearl Inlay told me about it and that I should not make the nut for my latest guitar without it. So I ordered one, used it for my string spacing, and... Perfect! Bill Badeaux, Badeaux Guitars

Bill Badeaux  La Porte, Texas
5 5-18-2012
Best Tool.I love it.

Best Tool.I love it.

okokguitar  Songkhla Thailand Read my reviews (4)
5 5-01-2012
Must have tool!

Use with a scribe & your nut slot accuracy cant get any better!

DJAcoustics  Michigan Read my reviews (3)
5 4-14-2012
String spacer

This thing sure puts strings in there place.Much faster than the old way.Well worth the money.

J. Wiseman  USA Read my reviews (8)
5 4-04-2012

This is the best tool yet. Takes all the guesswork out of making your own nuts. Simply brilliant.

Dingobass  Perth, Australia Read my reviews (76)
5 3-29-2012
Pretty cool

Havent used this a ton yet. Still using my 6 inch rule. Assuming that all of the marks work as they should this is a great tool. The couple times I've used it, it has worked out perfect. Just that old habits die hard and I just automatically grab my steel rule to do my string spacing. When Im nearly done is when I remember this tool.


Jerhico Guitars  Altona, NY Read my reviews (51)
5 3-22-2012
Why did I wait so long?

I kept putting off getting the string spacing rule. Now my backside is a bit sore from kicking myself - indispensable - nuts are laid out in a flash. One of the best products I've used in guitar building and repair.

Bill Styler  Priest River, ID Read my reviews (4)
5 3-16-2012

All the time i´ve spent measuring string position........ How did i do without this,blilliant tool

Bjarne Bayard  Denmark Read my reviews (7)
5 3-09-2012
Very helpful tool

This is a great tool. It makes string spacing pretty easy. Flip it over so it is upside down and it can be used to make left handed nuts too!

JHW  Lexington, KY Read my reviews (12)
5 3-01-2012
String Spacing Rule

A great time saving tool. Thanks.

M. Rauchfuss  Germany Read my reviews (2)
Displaying 51 – 60 < 1  ...  5  6  7  ...  13 > /\ Top of Reviews

Shown on page 18 of our latest catalog.
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