Description

The Martin Super D-18 takes the legendary Style 18 Dreadnought to the next level. With 20% more internal air volume than a standard Dreadnought, this Super D body delivers thunderous bass, increased volume, and extended dynamic range—all while keeping the iconic silhouette intact. Solid genuine mahogany back and sides add warmth and punch, while the spruce top ensures clarity and projection. Forward-shifted Golden Era scalloped X-bracing, as featured on the Modern Deluxe Series, makes every note responsive and powerful. Appointments like black binding, abalone dot inlays, and a satin-finished neck keep the look classic and the playability smooth. Paired with an ebony bridge and fingerboard, the Super D-18 is a bold evolution of an acoustic icon—built for players who want to be heard.

Specifications

Highlights

• Super D-14 Fret body size
• Genuine Mahogany back and sides
• Spruce top with Aging Toner top color
• GE Modified Low Oval neck with High-Performance Taper
• 1 3/4'' fingerboard width at nut
• Hardshell case
• Recommended Strings: Authentic Acoustic Lifespan® 2.0 Guitar Strings Phosphor Bronze - Medium

Top

Top Material: Spruce

Finish Top: Gloss

Top Color: Aging Toner

Top Inlay Material: Multi-Stripe

Top Detail: None

Binding: Black

Bridge Material: Ebony

Bridge Style: GE Modern Belly - Drop in Saddle

Bridge String Spacing: 2 5/32"

Bridge Pin Material: Ebony

Bridge Pin Dots: None

Pickguard: Faux Tortoise

Pickguard Inlay: None

Rosette: Old Style 18 Multi-Stripe

Saddle: Bone

Saddle Radius: 16"

Body

Body Size: Super D-14 Fret

Construction: Dovetail Neck Joint

Back Material: Genuine Mahogany

Side Material: Genuine Mahogany

Back and Side Finish: Gloss

Back and Sides Color: 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

Brace Material: Spruce

Brace Size: 5/16"

Heelcap: Black

Endpiece: Black

Endpiece Inlay: None

Neck

Neck Shape: GE Modified Low Oval

Neck Taper: High-Performance Taper

Neck Material: Select Hardwood

Neck Color: 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: Script Old Style Overlay

Headplate Binding Material: None

Tuning Machines: Nickel Open Gear

Knob: Butterbean

Nut Material: Bone