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Home : Tools : Straightedges : Fret Scale Rule

Fret Scale Rule

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Determine fret spacings and layout fretboards accurately.
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Fret Scale Rule
Item# Description In stock Price Quantity
0806 All three rules SAVE $9.90 Yes

0800 Gibson guitar rule Yes

0801 Fender / PRS / classical rule Yes

0802 Martin / mandolin / banjo rule Yes

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"Before working on any vintage guitar, I always check fret accuracy with these rules."
—Dan Erlewine

Our accurate, high quality 22" x 1-1/4" x .030" rules, crafted of durable stainless steel for years of service in professional repair shops. Each rule has four different fret scales, and features precisely etched, easy-to-read markings on both sides.

#0800 Gibson guitar rule
This rule includes Gibson's long scale and three shorter Gibson scales. The three shorter scales are different lengths, but over the years Gibson has referred to all of them as 24-3/4". For more detailed information, see
  • 24.562" Gibson (24-9/16")
  • 24.625" Gibson (24-5/8")
  • 24.750" Gibson (24-3/4")
  • 25.300" Gibson long

#0801 Fender / PRS / classical rule
  • 25.5" Fender
  • 25" PRS / Dobro® / National™ / Benedetto
  • 650mm classical
  • 660mm classical

#0802 Martin / mandolin / banjo rule
  • 24.900" Martin short
  • 25.340" Martin long*
  • 13-7/8" mandolin
  • 26-3/16" banjo
*Martin long scale: The scale used on Martin Dreadnoughts is commonly referred to as 25.4" but is actually 25.34".

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 Ratings and reviews
Fret Scale Rule
Fret Scale Rule
4.5 out of 5 stars
Based on 13 ratings Write a Review
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Displaying 11 – 13 < 1  2
5 12-10-2010

Very accurate...draw your fret without any guesswork!!

p gaudreau  canada Read my reviews (43)
2 9-19-2010
Fret scale rule... what else?

While these rules work fine for checking fret positioning, that's all they do. Frankly, they could have been made just a tad longer and include saddle position with correct compensation. With this addition it would make a very good and complete measuring tool, like the old IBEX scale rule.

IacopoNesiGuitars  Arezzo, Italy
5 9-17-2010
Fret Scale Rules, a powerfull tool

Aside from checking vintage fret spacing, check all NEW necks, especially replacement necks, for correct fret spacing. Yes, I have spent hours carefully measuring fret spacing on replacement necks and found the spacing incorrect. These necks will never play in tune. Save yourself time and money by quickly and accurately confirming correct fret spacing on all necks before investing your skills on a neck that will never play correctly.

Ken  Boise, Idaho Read my reviews (7)
Displaying 11 – 13 < 1  2 /\ Top of Reviews

Shown on page 9 of our latest catalog.

Dobro® is a registered trademark of Gibson Guitar Corporation.

National™ is a registered trademark of National Reso-Phonic Company.

Paul Reed Smith® and PRS® are trademarks of Paul Reed Smith Guitars.
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