Martin Custom Shop D-18 Adirondack/Mahogany (783)

The Custom Shop D-18 brings top-shelf tonewoods and handcrafted Martin quality within easy reach. Built with solid genuine mahogany and an Adirondack spruce top, it delivers clear, punchy tone with powerful projection—perfect for flatpicking, strumming, and everything in between. Hand-shaped Golden Era scalloped forward-shifted bracing and a traditional dovetail neck joint give it vintage-inspired resonance and dynamic response, while faux tortoise binding adds a unique twist on Style 18 tradition. It’s a special addition to our lineup that offers the full Custom Shop experience—no design session required. Whether you're stepping up to your dream guitar or adding something truly inspiring to your collection, the Custom Shop D-18 proves that high-end craftsmanship doesn’t have to be hard to find.

Body Size: D-14 Fret
Construction: Dovetail Neck Joint
Top Material: Adirondack Spruce
Top Finish: Gloss
Top Color: Aging Toner
Top Inlay Material: Multi-Stripe
Binding: Faux Tortoise
Back Material: Genuine Mahogany
Side Material: Genuine Mahogany
Back & Side Finish: Gloss
Back & Sides Color: Dark Mahogany
Back Purfling/Strip: Style 18
Bracing Pattern: Forward-Shifted X-Brace
Brace Shape: GE-Scalloped, Hand Shaped
Brace Material: Adirondack Spruce
Brace Size: 5/16"
Endpiece: Faux Tortoise
Rosette: Old Style 18 Multi-Stripe
Pickguard: 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
Saddle: Bone
Saddle Radius: 16"
Neck Material: Select Hardwood
Neck Shape: GE Modified Low Oval
Neck Taper: High-Performance Taper
Neck Color: Dark Mahogany
Neck Finish: Satin
Scale Length: 25.4"
Number of Frets: 20
Neck Joins Body At: 14th Fret
Heelcap: Faux Tortoise
Fingerboard Material: Ebony
Fingerboard Width at Nut: 1 3/4"
Fingerboard Width at 12th Fret: 2 1/8"
Fingerboard Inlay Style: Old Style 18
Fingerboard Inlay Material: Abalone
Fingerboard Binding: None
Side Dots: White
Headstock Shape: Solid with Square Taper
Headplate Material: East Indian Rosewood
Headplate Logo Style: Authentic Style Script Overlay
Headplate Binding: None
Tuning Machines: Nickel Open Gear
Tuner Knobs: Butterbean
Nut Material: Bone
Case: Hardshell Case
Recommended Strings: Authentic Acoustic Lifespan® 2.0 Phosphor Bronze - Medium