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What is high action? What is low action? What is medium action?

Discussion in 'Hardware, Setup & Repair [BG]' started by odie, Oct 26, 2003.

  1. odie

    odie Supporting Member

    I realize action is an old topic.

    But for the life of me I cant find a measurement(prefer mm) describing what Low, Med,or High action is. Seems you either hear people say "I like it at xyz at the 1 fret". But is that open or fretted?? Or they state "I like low action".

    Well Im asking just what the heck is that??
  2. jani_bjorklund


    May 22, 2002
    The action is not determined at the nut. The old wisdom that when pressing the string at the 3rd fret the string should clear the first fret is very usable.
    The action is merely adjusted at the bridge and by adjusting the neck relief.

    Ken Smith: relief between 1-2mm at the 9th fret, low heightt at the 12th fret is conciderd 1,5mm

    Roger Shadowsky: E = 2,4mm, G = 2.0 mm

    Brett carlson: E = 3.9 mm, G = 2,4 mm, slight relief = 0.4 mm

    Michael Tobias: Starting point = 3,2 mm at the last fret. 1.6 - 2.4 mm at the 12th fret.

    All mesurments made with a "capo" on the first fret and mesuring from the top of the frets to the bottom of the strings.

    Hope this helps some.