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Martin Custom Shop D-18 Adirondack Spruce (939)

A Custom Shop D-18 powerhouse with a roaring Adirondack spruce top for vintage-inspired tone and unmatched headroom.

$4,199.99

Same price at every authorized dealer. The difference is what comes with it.

SKU: 256988
Serial: M3055939
Weight: 4lbs 2oz/4.1lbs

0% for 36-48 months available

4.8
Rated 4.8 out of 5
98% Recommend

557 reviews

1 In Stock - Inspected & ready to ship.

72-Hour Love-It Guarantee — Free returns

Inspected 3X Before Shipping

Free 1-4 Day Delivery

1 in stock

Talk To A Player Before You Buy

Rob and Cory are gigging musicians who know gear inside and out. They'll give you the straight answer—even if it means pointing you somewhere else.

Quick Specs

  • Mahogany Body | Aging Toner Gloss Finish
  • GE Modified Low Oval Neck | Black Ebony Fingerboard
  • Acoustic (No Electronics)
  • 25.4" Scale Length
  • Adirondack Spruce Top & Bracing

Player-Perfect™ Pro Setup Included

Our techs are all seasoned players, so they dial in every guitar like it’s going into their own rig—perfect intonation, action set exactly right, ready to rip from the first note.

Want it YOUR way? Tell us at checkout: string gauge, action height, whatever you need. We’ll nail it before shipping.

Product Description

The D-18, Perfected

The Martin D-18 is a legend, a workhorse that has defined the sound of countless records with its dry, woody, and fundamental tone. But what happens when you hand that iconic blueprint over to the Martin Custom Shop with a single mission, to make it even more responsive, powerful, and vintage-inspired? You get this, a Custom Shop D-18 with a gorgeous Adirondack Spruce top. This isn’t just another D-18; it’s a finely-tuned instrument built for the discerning player who craves tonal purity and explosive dynamic range.

Adirondack & Mahogany: A Timeless Pairing

It all starts with the top wood. Adirondack spruce is the holy grail of top woods, prized for its incredible stiffness-to-weight ratio. What does that mean for you? Unmatched headroom and clarity. You can dig in with a heavy pick and the notes will stay crisp and articulate, never washing out. When you play with a lighter touch, you’re rewarded with a beautiful, crystalline focus. Paired with the genuine mahogany back and sides, you get that classic warm, direct, and woody D-18 midrange that sits perfectly in any mix.

The Engine: Golden Era Bracing

Under the hood, this Custom Shop D-18 features hand-shaped, scalloped Golden Era Adirondack spruce bracing. This lighter, more refined bracing pattern allows the top to vibrate more freely, creating a guitar that is incredibly responsive and open-sounding right out of the box. It’s a key ingredient in achieving that breathy, vintage-inspired voice with exceptional sustain. Every nuance of your playing is translated into pure, musical tone.

Modern Playability, Classic Feel

While the tone is pure vintage, the feel is all about modern comfort. The neck is carved into a GE Modified Low Oval profile with a High Performance Taper. It’s a neck that feels instantly familiar and comfortable, filling the hand without being cumbersome. This, combined with the 1 3/4″ nut width, provides ample space for complex chord voicings and fast, clean flatpicking runs. The satin finish on the neck is just the icing on the cake, offering a smooth, fast feel up and down the black ebony fingerboard.

Anatomy of a Tone Machine

Anatomy of a Tone Machine

Perfect for: Bluegrass • Folk • Singer-Songwriter • Country

Tone

  • Explosive projection and headroom from the Adirondack spruce top.
  • Warm, dry, and focused midrange thanks to the mahogany body.
  • Rich, open, and resonant voice enhanced by scalloped GE bracing.
  • Incredibly responsive to both heavy strumming and delicate fingerpicking.

Playing Feel

  • A classic dreadnought feel that's powerful and resonant against the body.
  • The GE Modified Low Oval neck with High Performance Taper is fast, comfortable, and built for performance.
  • The satin neck finish provides a smooth, uninhibited playing experience.
  • Effortless playability for long gigs or studio sessions.

Versatility

  • Excels at flatpicking, with clear note separation for intricate bluegrass runs.
  • A perfect singer-songwriter tool, providing a strong but balanced accompaniment that never overpowers the vocal.
  • A studio dream. The D-18's fundamental-focused tone is famously easy to record.
  • Cuts through a mix with authority, whether in a full band or an acoustic jam.

Complete Technical Specs

Body Specs

TypeAcoustic Dreadnought
Top WoodAdirondack Spruce
Back & Sides WoodMahogany
BracingScalloped Golden Era Adirondack Spruce
BindingBrown Faux Tortoise
FinishGloss
ColorAging Toner

Neck Specs

WoodGenuine Mahogany
ProfileGE Modified Low Oval
TaperHigh Performance Taper
FinishSatin

Fingerboard Specs

MaterialBlack Ebony
InlaysOld Style 18
Nut Width1 3/4"

Electronics Specs

Hardware Specs

BridgeBlack Ebony, GE Modern Belly
TunersGrover Nickel Vintage Button

Measurements

Scale Length25.4"
Nut Width1.75"
The Lowdown

The Lowdown

We get it. Buying a guitar you haven’t played is a big decision. You need to know it’s going to feel right, sound right, and inspire you the second you open the case. We put together the questions we’d be asking if we were in your shoes—the real-world stuff that specs alone can’t answer. If there’s anything else you’re wondering about, just give us a call.

Adirondack spruce, or ‘Red’ spruce, is significantly stiffer than Sitka spruce. This gives it a higher ceiling for volume and power. You can strum it aggressively without the tone breaking up or getting muddy. It’s known for providing exceptional clarity, a strong fundamental, and a ‘punchy’ quality that’s perfect for styles like bluegrass.
The Golden Era (GE) bracing is a lighter, more deeply scalloped version of Martin’s standard bracing. By removing more wood from the braces, the top is able to vibrate more freely. This results in a guitar that sounds more ‘open’ and responsive, with a quicker attack and a more complex, vintage-style voice.
Of course. Every guitar gets our full Player-Perfect™ setup, but tell us your preferred string gauge and action at checkout, and we’ll dial it in exactly to your spec before it leaves the shop.
This guitar is covered by our 72-Hour Love-It Guarantee. If you’re not completely inspired by it, just let us know. We’ll make it right.
Orders ship same day in most cases and arrive within 1-4 business days with free, insured shipping. We’ll get it into your hands as quickly as we can.
Call us at (888) 794-8482. You’ll talk to a real musician who can answer anything you need to know.
The Moore Guitars Difference

Player-Perfect™ Setups

Every guitar we sell is dialed in by seasoned musicians. We obsess over the details—perfect intonation, immaculate fretwork, and ideal action—so your guitar is ready to rip right out of the case. No exceptions.

Advice From Real Players

Call us and you get a fellow musician, not a script. We'll help you compare neck profiles, talk tone, and find the right guitar for you—even if it's not this one. Our reputation is built on honest conversation.

49+ Years Of Trust

Family-owned since 1976, we stand behind everything we sell. That's why we have a 72-Hour Love-It Guarantee. If you're not inspired, send it back on our dime for a full refund. Your satisfaction is our legacy.

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4.8
Rated 4.8 out of 5

244 reviews

98% Recommend

313 reviews

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