How to Find the Scale Length of a Prefab Guitar Neck
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Got a guitar neck, but no idea what the scale length is?
If the neck already has frets, figuring it out is simple – and essential for proper bridge placement, especially in DIY builds.
Recently, I published the Fret Calculator tool to get the fret positions on the neck depending on the planned scale length. But when you have the fretted neck, the task is opposite: to figure out the scale length.
It’s especially important to the CBG builders because the cigar boxes have a pretty small size. And not every box will be long enough to accomodate the desired scale length
🎯 Why You Need to Know the Scale Length
Scale length determines how far apart your frets are and where your bridge should go. If you get it wrong, your guitar won’t intonate properly – and won’t sound right.

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