How To Adjust the Action on Your Acoustic Guitar

In this episode of “Gibson’s Guide to Guitar Setup and Maintenance,” Gibson Master Luthier, Jim DeCola, shows us how to adjust the action on your acoustic guitar without turning it into a pile of expensive kindling. Jim also shows off his ingenious, DIY bridge adjuster.

Master Luthier Jim DeCola shares an ingenious piece of DIY technology he created to more easily and accurately adjust the bridge piece of acoustic guitars. It’s a tool anyone at home can make with a piece of smooth glass, some sandpaper, a little glue, and a small piece of wood. Does it work? Consider, Jim’s a guy who sweats 32/1,000ths of an inch, so yeah, it works. And after you watch this video, you’ll be able to adjust your action up or down with relative ease. Jim also covers what to do in a gigging situation where your action is thrown off, but you don’t have the time, or the benefit of a workbench, or your own guitar tech. And if you’ve ever wondered, “What would Jim do?” if a sudden change in humidity threw off your action, you’re about to find out.

For more detailed information on guitar setup and maintenance, or more complicated DIY repairs, be sure to check out Gibson’s FREE Virtual Guitar Tech service at

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