Stewart-MacDonaldEverything for building and repairing stringed instruments!
Your order cart Your order | Account | Saved list
Sign in
800-848-2273, 9AM-6PM EST, M-F
Home Free catalog Quick order International Customer service

Home : Nuts, saddles : String Spacing Rule

String Spacing Rule

Read 126 Reviews   |   Write a Review

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

See details below

Email a friend
String Spacing Rule

Play video

Item# Description In stock Price Quantity
0673 String Spacing Rule Yes

Selected currency  


Related items

Slotted Unbleached Bone Nut

Nut Slotting Gauge

Gauged Nut Slotting Files

Double-edge Nut Files

Nut Seating Files

Slotted Unbleached Bone Nut
Nut Slotting Gauge
Gauged Nut Slotting Files
Double-edge Nut Files
Nut Seating Files

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.

Subscribe now
/\ Top of product page
 Ratings and reviews
String Spacing Rule
String Spacing Rule
5 out of 5 stars
Based on 126 ratings Write a Review
Sort reviews by
Displaying 101 – 110 < 1  ...  10  11  12  13 >
5 3-09-2011

After trying dozens of times to measure the spacing with a caliper i tried using the string spacing rule, first time i got perfect spacing. Will use this every time i make a new nut!

JonM  Ontario, Ca
5 2-26-2011
guitar upgrade

your service is superb, your tools are first rate. thank you stewart macdonald

robin ellis  shrewsbury shropshire england
5 2-02-2011
It is as good as everyone says

It vastly improved the playability of a 12 string to get the string spacing correct. Super simple to use. Worth the money even if you only do one nut, but you'll want to make new nuts for all your instruments after doing the first.

Utahraptor  Sandy, UT Read my reviews (3)
4 1-31-2011
Nothing else like it

This is a great tool. There is no other tool that so easily helps to mark out spacing measurements. That said, it can be a little clumsy to bend the rule over a curved piece of material and hold it in place while trying to mark it. Other than that, a great tool.

Parhal  Wisconsin Read my reviews (8)
5 1-04-2011
A Winner

Everyone who works on guitars needs this rule,spot on nuts every time. So easy to use thanks Dan and Stewmac

GOA Guitars  Bris Australia Read my reviews (10)
5 12-31-2010
Rule of strings

Man am I glad I found this thing. I have made several nuts and bridges before and had to always calculate the spacings. This tool is so simple and easy, plus a time saver. Basically for a 6 string guitar, all you need to know is how far you want the 1st and 6th strings,(the E strings) to set from the edge of the fret board. Line the string rule up and mark the other string placement and groove them out. When I used to calculate the spacings, I never even thought to consider the string thickness. The string rule does that as well. If you make many nuts and bridges this is a great tool to have, a must. Thanks StewMac

Tinkering picker  Pomeroy, Ohio Read my reviews (3)
5 12-23-2010

This thing works great. What a simple, brilliant idea. It takes the guesswork out of string spacing.

Pat  Cumberland, MD Read my reviews (5)
5 12-15-2010
String Spacing Rule

Terrific,I have done what every one else has done. Pencil rubbing out re-correcting,now a quick mark and I'm there. Multiple strings not a problem.

John.R  Australia Read my reviews (2)
5 12-11-2010
A real time saver!

Instead of laboriously calculating the correct string spacing, and then very carefully etching the nut before cutting the slots, this rule does all that and remembers it for the next time. A simple colored dot with a Magic Marker saves the specific setting for the next time. Produces a perfect string spacing.

Cone Guitar  Kihei, HI Read my reviews (3)
5 12-06-2010
String spacing ruler

Made determining string spacing so simple. Can just eyeball the spacing you want and mark the nut from there. Paired with the pre-shaped nuts, making a nut is no longer a problem.

Displaying 101 – 110 < 1  ...  10  11  12  13 > /\ Top of Reviews

Shown on page 18 of our latest catalog.
Select your items, then click ADD to order

To add items to your order, select the check box next to the item you want. You can edit the quantity you wish to purchase here, or in Your Order.

Select your items, then click Save for later

To add items to your saved list, select the check boxes next to the items you want. You can edit the quantity you wish to save here, or in your Saved List.

Toll-free order line:   800-848-2273   9am-6pm Eastern Time, M-F

Your order | Your account | Trade Secrets E-mail Newsletter
Home | Free catalog | Catalog Quick Order | International | Customer service
Our guarantee | Shipping | Security & Privacy | Contact us
Site map | About Us | Employment
© Copyright 2014 Stewart-MacDonald
Your shopping is secure with VeriSign! Trusted Commerce