12 String Guitar: A Complete Buyer's Guide

Buying a 12 string guitar is different from picking up a regular six-string. There are more variables in play, the physical demands are steeper and the money you spend needs to work harder because not every player clicks with this instrument. The good news is that understanding what matters—and what doesn't—makes the process straightforward. Let's work through the key specs and design choices that actually shape how the instrument feels and sounds in your hands.

Neck Construction and Comfort

The neck is your first and most important consideration. A 12 string guitar experiences roughly double the string tension of a six-string equivalent, and that stress pours directly into the neck. If the neck can't handle it, the instrument will warp, twist or develop a permanent curve that no amount of truss rod adjustment can fix. Look for guitars with reinforced necks—commonly achieved using either a stronger wood species, internal carbon fibre rods, or both.

The nut width matters too. Because you've got twelve strings compressed into the headstock, the nut needs to be wider than a six-string nut—typically 44mm or wider compared to a standard 42mm. A narrower nut forces the strings too close together, which causes friction, broken strings and muted notes. Conversely, too wide and your hand stretches past comfort. Check the measurements; most quality 12 string guitars fall between 44mm and 48mm.

Comfort also depends on how well the bridge is set up. The bridge has to space twelve strings evenly across the width of the body, which is trickier than it sounds. If the spacing is uneven, some strings sit too close together and buzz against each other, while others sit so far apart that you can't fret them cleanly. Run your thumb across where the strings sit on the nut and bridge—they should feel evenly spaced and sit cleanly in their slots.

Body Resonance and Wood Choice

Acoustic guitars derive their tone from how the wood vibrates. A 12 string guitar's body has to move a lot more air and absorb a lot more vibration than a six-string, so body construction directly affects how the instrument voices those doubled strings. Spruce tops are the standard for a reason—they're responsive and they naturally brighten the high end. Mahogany backs and sides warm things up and add bass response. Cedar tops are less common but offer a mellow, immediate tone.

Pay attention to the bracing pattern inside the body—this is the internal structure that keeps the soundboard from collapsing under string tension. A standard X-brace is common, but some builders use alternative patterns designed specifically for the extra stress of twelve strings. If you're trying instruments, ask whether the bracing has been optimised for doubled strings. It's a technical detail, but it correlates directly with how long the instrument will stay playable and sound good.

String-Pairing Preference and Tuning Setup

Before you buy, understand your tuning preference. On the three lowest pairs, the secondary strings can be tuned either in unison with their partners (for a denser, punchier sound) or slightly detuned (for shimmer and movement). Some players prefer unison lower pairs; others swear by detuned. This isn't a specs question—it's a personal preference that changes how the instrument responds to your touch.

Ask the seller or builder how the guitar is set up. If they've tuned the lower pairs in unison, you can experiment and retune them detuned yourself. But if the guitar comes set up a particular way, that reflects the builder's or seller's philosophy about how the instrument should sound. Try before you buy if you can; if you're ordering online, ask specifically about lower-pair tuning and be prepared to adjust it yourself after delivery.

Action, Fret Work and Playability

Action—the height of the strings above the fretboard—is critical for a 12 string guitar. The doubled strings need more clearance than a six-string because both strings in each pair need to ring cleanly without buzzing. Too low and you'll get fret buzz on one or both strings in each pair. Too high and your fingers will tire quickly. Aim for 2.0mm to 2.2mm at the first fret (the action at the headstock end) and 2.5mm to 3.0mm at the twelfth fret (body end).

Examine the frets themselves. Uneven frets are a particular problem on budget 12 string guitars. If the frets are inconsistent, no action setting will work—some strings will buzz while others sit too high. Run a straightedge along the fretboard and look for visible gaps. Professional fret work is expensive, so it's better to start with an instrument where the frets are already good.

Budget and Value

Price correlates with quality on 12 string guitars more directly than on six-strings because the construction demands are higher and builders can't cut corners without immediate, audible problems. A properly made budget instrument—typically £200 to £400—will be playable but won't sound particularly inspiring. Mid-range guitars (£400 to £800) offer a real tonal step up and typically come with reinforced necks and decent fret work as standard. High-end instruments (£800 and beyond) deliver craftsmanship and tone that justifies the expense for serious players.

If you're new to the instrument, start in the mid-range. A £500 guitar will teach you what a 12 string can do without forcing you to adapt to a sluggish neck or a poorly spaced nut. Many experienced players find their sweet spot in this range and stick there—the extra expense of premium models doesn't always translate to a proportional improvement in playability or tone for most musical purposes.

Testing Before You Buy

If possible, play before you commit. Pay attention to how the doubled strings feel in your hands—do they feel balanced and even, or does one string in each pair seem to dominate? Listen for buzzing on the lower strings and clarity on the higher pairs. Strum open chords and let them ring for a few seconds; you should hear clear, singing tones, not muted or dull response.

Ask the seller about setup specifications—nut width, action measurements, bridge spacing. A knowledgeable seller will know these numbers. If they can't tell you, question whether they understand the instrument or care about quality. The right guitar at the right price will feel like a conversation—the builder or seller has clearly thought about how it will work for a player, and that intentionality matters far more than any single spec.