Martin Custom Shop D-18 Acoustic Guitar

The Martin Custom Shop D-18 is a beautifully executed take on a classic dreadnought, pairing genuine mahogany back and sides with an Adirondack spruce top for a clear, punchy voice and huge projection. With Golden Era hand-shaped scalloped bracing, a traditional dovetail neck joint and a sleek modern neck profile, it blends vintage-inspired tone and response with contemporary playability, giving you a truly inspiring all-round acoustic that feels every bit as special as it sounds.

Whether you are a flatpicker chasing that dry, articulate bluegrass cut, a songwriter who needs a responsive strummer, or a fingerstyle player wanting clarity and headroom, the Custom Shop D-18 delivers. Faux tortoise appointments add a tasteful twist on classic Style 18 aesthetics, while the high-performance neck taper and wider 1 3/4 inch nut width make extended sessions comfortable and controlled. This is a guitar that rewards a light touch but happily keeps up when you really dig in.

Vintage-Inspired Power and Clarity

At the heart of the Custom Shop D-18 is its combination of an Adirondack spruce top and genuine mahogany back and sides. Adirondack is prized for its stiffness and headroom, giving you a powerful, focused tone that stays clear even when you play hard. Mahogany adds warmth, dryness and midrange punch, so every note has definition and presence, whether you are playing intricate runs or big open chords.

Golden Era Bracing and Dovetail Neck Joint

Hand-shaped Golden Era scalloped forward-shifted X-bracing, carved from Adirondack spruce, lets the top move more freely for greater volume, sustain and dynamic nuance. Paired with a traditional dovetail neck joint, it gives the guitar a lively, vintage-style resonance that feels open and responsive under the fingers, making subtle changes in attack and dynamics immediately audible.

Comfortable Modern Neck Feel

The GE Modified Low Oval neck with High-Performance Taper offers a contemporary feel that suits a wide range of playing styles. The 1 3/4 inch nut width and slightly wider 12th fret spacing provide extra room for complex chords and clean fingerstyle work, while still feeling fast and familiar for flatpicking and strumming. A satin finish on the neck keeps things smooth and comfortable during long playing sessions.

Elegant Style 18 Aesthetics

Classic Style 18 appointments are given a subtle Custom Shop twist, with faux tortoise binding, heelcap and endpiece complementing the dark mahogany back and sides. An Aging Toner gloss top, Old Style 18 multi-stripe rosette and abalone fingerboard inlays complete a look that is understated yet unmistakably high-end, making this D-18 as visually appealing on stage as it is in your hands.

• Adirondack Spruce Top - The Adirondack spruce soundboard delivers exceptional headroom, clarity and projection, so your tone stays open and articulate whether you are playing softly or driving the guitar hard with a pick.
• Genuine Mahogany Back and Sides - Solid genuine mahogany provides a warm, dry and focused midrange that helps your playing sit perfectly in a mix, ideal for recording, ensemble work and solo performance alike.
• GE Modified Low Oval Neck with High-Performance Taper - This modern neck profile offers a comfortable, fast feel with a 1 3/4 inch nut width, giving you extra space for complex chords and fingerstyle patterns without feeling bulky.
• Golden Era Scalloped Forward-Shifted Bracing - Hand-shaped GE scalloped bracing, moved slightly forward on the top, enhances resonance, volume and responsiveness, giving the guitar a lively, vintage-inspired character.

Top

• Top Material: Adirondack Spruce
• Finish Top: Gloss
• Top Colour: Aging Toner
• Top Inlay Material: Multi-Stripe
• Top Detail: None
• Binding: Faux Tortoise
• Bridge Material: Ebony
• Bridge Style: GE Modern Belly - Drop in Saddle
• Bridge String Spacing: 2 5/32"
• Bridge Pin Material: Black Plastic
• Bridge Pin Dots: None
• Pickguard: Faux Tortoise
• Pickguard Inlay: None
• Rosette: Old Style 18 Multi-Stripe
• Saddle: Bone
• Saddle Radius: 16"

Body

• Body Size: D-14 Fret
• Construction: Dovetail Neck Joint
• Back Material: Genuine Mahogany
• Side Material: Genuine Mahogany
• Back and Side Finish: Gloss
• Back and Sides Colour: Dark Mahogany
• Back Detail: None
• Side Detail: None
• Back Purfling/Strip: Style 18
• Back Inlay Material: None
• Side Inlay Material: None
• Bracing Pattern: Forward-Shifted X-Brace
• Brace Shape: GE-Scalloped Hand Shaped
• Brace Material: Adirondack Spruce
• Brace Size: 5/16"
• Heelcap: Faux Tortoise
• Endpiece: Faux Tortoise
• Endpiece Inlay: None

Neck

• Neck Shape: GE Modified Low Oval
• Neck Taper: High-Performance Taper
• Neck Material: Select Hardwood
• Neck Colour: Dark Mahogany
• Finish Neck: Satin
• Scale Length: 25.4"
• Number of Frets Total: 20
• Neck Joins Body At: 14th Fret
• Fingerboard Material: Ebony
• Fingerboard Width at 12th Fret: 2 1/8''
• Fingerboard Width at Nut: 1 3/4''
• Fingerboard Inlay Style: Old Style 18
• Fingerboard Inlay Material: Abalone
• Fingerboard Binding Material: None
• Side Dots: White

Headstock

• Headstock Shape: Solid with Square Taper
• Headplate Material: East Indian Rosewood
• Headplate Logo Style: Authentic Style Script Overlay
• Headplate Binding Material: None
• Tuning Machines: Nickel Open Gear
• Knob: Butterbean
• Nut Material: Bone

Miscellaneous

• Case: Hardshell
• Label: None
• Electronics: None
• Left Handed Availability: true
• Pleked: true
• Recommended Strings: Authentic Acoustic Lifespan 2.0 Guitar Strings Phosphor Bronze - Medium