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Home : Nuts, saddles : 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 71 – 80 < 1  ...  7  8  9  ...  13 >
5 10-21-2011
Spaced correctly

If you don't purchase pre-slotted nuts this tool takes the guesswork out of spacing string slots correctly. I've cut a few nuts and used this to space the inner 4 strings properly after laying out the two E strings to where I want them. If you've been doing this for years your experience may be a great guide. For those of us maintaining our own gear this takes out some of the guesswork.

tb  Portland OR Read my reviews (50)
5 10-01-2011
you gotta have this

makes nut spacing fast and easy

sherman stockton  indiana Read my reviews (19)
5 9-26-2011
Makes saddle notching approachable for the novice!

The stew-Mac string spacing rule made notching the saddles on a tune-o-matic bridge a job I could do right the first time-really makes a difference to have the strings spaced to your personal preference as a player!.

Velvet bulldozer  Seattle, wa Read my reviews (2)
5 9-15-2011
Time saver

This is 100% faster than the old way. Nothing wrong with the old way, but time is money.

Mike T.  North Carolina, USA Read my reviews (24)
5 9-11-2011
awesome tool

very nice and easy to use , i can make nut for 4 strings bass to 12 strings and to 7 - 9 strings electric guitar

nonuz  kuala lumpur Read my reviews (4)
Customer supplied image for review
5 8-29-2011
Mando Purchase

It takes a little time and thought but once you figure it out your string spacing will be correct.

Eric L  Englewood Oh Read my reviews (3)
5 8-28-2011
Nut spacing made easy

This has taken my nut making to the next level, and has helped speed up the job. I was unsure if it would be worth the investment, but I now can't imagine making a nut without it.

Old Town Gutiars  Georgetown, TX Read my reviews (4)
5 8-19-2011
string spacing rule

this is a must have item for your lutherie toolkit, takes the guess work out of string spacing, every luthier should have one...

Rob the luthier  Scotland Read my reviews (8)
Customer supplied image for review
5 8-10-2011
String Spacing Rule

This was my first purchase from StewMac. I attempted to slot a nut only once in my life and it was a shocker. I then received the string spacing rule and followed the instructions it was sent with. The nut turned out perfect in regards to spacing and playability. This rule is probably the best thing since sliced bread. Too easy to use. Expensive for what it is BUT it makes the job so much easier and saves time too. However, it's only going to give you correct spacing that feels great, but the rest of it is up to how you actually slot the nut. That's an art. Best buy ever for me.

JMAN  Australia
5 8-10-2011
Awesome tool to get spacing just right

It is a quick and easy method to get nicely spaced nut slots. After seeing the results, all my previous nut jobs look off... Takes a few minutes to get the hang of it, after that, it becomes super easy to locate the right marks.

joeyl  El Paso TX Read my reviews (2)
Displaying 71 – 80 < 1  ...  7  8  9  ...  13 > /\ Top of Reviews

Shown on page 18 of our latest catalog.
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