Vintage Acoustic Guitar Buying Guide: Structural Issues to Look For

Throughout my 30 years in the business, I've been asked these questions countless times:

"How do I know if I'm looking at a solid acoustic guitar?"

"How do I know if an acoustic guitar needs a neck reset?"

"When I shop for a vintage acoustic, what do I watch out for?"

I've also seen so many people make mistakes, purchasing problem acoustics from legitimate shops, private parties, pawn shops, Reverb, etc, only to find that their new guitar is in need of expensive, specialized work. 

When evaluating a vintage acoustic guitar, tone, brand, and originality all matter—but nothing matters more than structural health. A guitar with great provenance and beautiful tone can quickly become an expensive headache if the underlying structure isn’t sound.

Before you fall in love, there are critical areas that deserve close attention: neck angle, the top, and the bridge / saddle. 

Of course there is a lot more to think about, especially if you're buying a rare, vintage piece or an expensive contemporary guitar.  But, if what you want to do is to be able to buy an acoustic with less stress and fewer surprises, this will get you started on the right path to choosing a solid, playable instrument.

Start With the Neck Angle

I feel that this is the most important, and thus the first thing to check.  It is also kind of the easiest potential issue to identify. 

There's one thing we can count on: eventually, all acoustic guitars will eventually need neck resets.  Storing your guitar properly and detuning it some when not playing it will hold reality off for a long time, but in the end the effect of the string tension on the neck will change the neck angle to the point where playability and tone are negatively affected.

Your first step when you're looking at a potential new acoustic is to check the action.  Are the strings high off the fretboard?  Look at the bridge.  Is the saddle low?  If the answer to both is yes, the guitar most likely needs a neck reset. 

You can get a little more technical with just your eyes.  If you sight down the edge of the fretboard with your eye aiming from the headstock to the bridge you can see if the neck angle is good or bad. 

Following the line of the fretboard with your eye as if it is a straight edge, see where the line would hit if it went all the way to the bridge.  That line should end close to the top of the wood part of the bridge.  If the line trends towards the middle of the bridge, or even lower, the neck angle is off and a the need for a neck reset is likely.  If the action is high, the saddle is low, and the neck sights low on the bridge, that's the trifecta - the neck very definitely needs to be reset.

And the saddle - how low is too low?  This is a little tricky to depict in words, but it is pretty simple.  The strings need to drive the top with vibration.  To do so, there needs to be solid tension on the saddle.  This requires the strings to leave the holes where the bridge pins hold them at an appropriate angle, then break over the saddle on their way to the nut.  If the saddle is low, the whole system is compromised.  If you can move the string across the saddle with the guitar tuned to pitch, that 

Neck resets are common on vintage acoustics—especially pre-1970 instruments—and they are not necessarily a deal-breaker. In fact, a properly executed neck reset can dramatically improve playability and tone. However, it must be priced into the purchase. Understanding whether a reset is needed (or has already been done correctly) is essential to determining true value.

Next, examine the top.
Some light bellying behind the bridge is normal on many older acoustic guitars, particularly lightly built instruments. What you want to watch for is excessive distortion, sinking around the bridge, or pronounced rippling across the top. These issues can indicate loose braces or long-term structural stress.

Sight across the top under good lighting. Look at it from multiple angles. A healthy vintage top should show age and character—but still feel stable and intentional in its shape.

Finally, inspect the internal bracing.
Loose or reglued braces are common on older guitars, but the quality of the repair matters enormously. Clean, professional repairs using appropriate materials and techniques are perfectly acceptable and often unavoidable on truly vintage instruments.

Poorly executed repairs, excess glue, or altered brace shapes can compromise both tone and long-term stability. Ideally, you want to see original bracing that remains intact—or repairs that were done cleanly and respectfully by a skilled luthier.

A good vintage acoustic guitar should feel stable, not fragile. Age alone does not make an instrument delicate. When the structure is right, a vintage acoustic can be both inspiring and reliable for decades to come.