Collings Guitars and Mandolins Facebook Page Collings Guitars and Mandolins Twitter Page Collings Guitars and Mandolins YouTube Channel
Sign up for email updates
News, product releases, tips, featured instruments, and more
AT 18

Click main image to enlarge

  • Overview
  • Options
  • Video
  • Specifications

'OM' stands for "Orchestra Model," but 80 years after this body shape was first designed it has become the most popular 14-fret model with fingerstyle guitar soloists who choose to play on steel strings. Yet flatpickers also find it appealing, and when the graceful cutaway is added these OMs are often used by lead players who routinely explore all 20 frets much as they would on an electric guitar. The compact shape makes the Collings OM equally easy to handle onstage or when sitting on the couch, and the relatively shallow body (barely over 4 inches deep) results in balanced tone and an immediate response.

Standard Features Include:

  • Select sitka spruce top
  • East Indian rosewood back and sides
  • Select abalone rosette
  • Grained ivoroid top/back/neck/peghead binding
  • Black/white wood purfling with 3-style mosaic backstrip
  • Pre-war scalloped bracing
  • Tortoise-style celluloid pickguard
  • High gloss nitrocellulose lacquer finish
  • Mahogany neck
  • Double bound square headstock with volute
  • 15 degree headstock angle
  • Ebony peghead overlay with inlaid Collings logo
  • Ebony fingerboard with ebony belly-style bridge
  • Mortise and tenon hybrid neck joint
  • 20 Frets, neck joins the body at the 14th fret
  • Modified V neck profile with 2 3/16" string spacing
  • 14"-26" Compound fingerboard radius
  • 1 11/16" Bone nut and drop-in saddle
  • 25 1/2" Scale length
  • Medium 18% nickel-silver fretwire
  • No fingerboard inlays
  • Fully adjustable truss rod
  • Ebony bridge pins and end pin
  • Gold Waverly tuners with 16:1 ratio
  • Recommended string gauge - D'Addario EJ-16 (.012"-.053")
  • Collings deluxe hardshell case by TKL

Top Options:

  • Sitka Spruce (standard)
  • Adirondack Spruce
  • European Spruce
  • Engelmann Spruce

Design Options:

Finish Options:

Bone Nut

Inlay Options:

more custom acoustic guitar options

There Are No Shortcuts: Collings Acoustic Guitars

This short documentary film examines acoustic guitar building at Collings Guitars and the focus on quality that has come to define the company culture.


  • Body Length: 19 1/4"
  • Body Depth at Side: 4 1/8"
  • Lower Bout Width: 15"
  • Total Length: 39 1/2"
  • Scale Length: 25 1/2"
  • Standard Nut Width: 1 11/16"


  • Factory Strings: D'Addario EJ-16 (.012"-.053")
  • Recommended Gauges:
Find Collings Guitars and Mandolins on Facebook