Martin Custom Shop 18 Style OM Adirondack/Sinker Mahogany w/case 3053226

This Martin Custom Shop 18 Style OM was built for Tone Shop Guitars as a refined take on the classic Orchestra Model platform, pairing Adirondack spruce with sinker mahogany for a responsive, articulate voice. The OM body offers excellent balance and clarity across all strings, with added headroom from the Adirondack top, making it equally suited for fingerstyle detail and flatpicking dynamics.

The build stays true to a traditional 18-style foundation while incorporating thoughtful Custom Shop upgrades. Forward-thinking details like hand-shaped GE scalloped bracing, a Modified V neck with High Performance taper, and a gloss body with satin neck create a guitar that feels broken-in while maintaining precision and consistency.

Highlights

• Tone Shop–spec’d Custom Shop OM platform
• Adirondack spruce top with GE hand-shaped scalloped bracing
• Sinker mahogany back and sides for added depth and character
• Modified V neck with High Performance taper
• Gloss body with satin neck for a smooth, comfortable feel

Specifications

Body

• Body Size: 000/OM Auditorium
• Top Material: Adirondack Spruce
• Top Color: Aging Toner
• Top Finish: Gloss
• Back & Side Material: Sinker Mahogany
• Back & Side Finish: Gloss
• Bracing Pattern: X-Brace
• Brace Shape: GE Scalloped (Hand Shaped)
• Brace Material: Adirondack Spruce
• Brace Size: 1/4"
• Binding: Brown Faux Tortoise
• Rosette: Old Style 18 Boltaron
• Pickguard: Faux Tortoise

Neck

• Neck Material: Select Hardwood
• Neck Shape: Modified V
• Neck Taper: High Performance Taper
• Neck Finish: Satin
• Scale Length: 25.4"
• Fingerboard Material: Black Ebony
• Fingerboard Inlay: Diamonds and Squares Long (Select Abalone)
• Fingerboard Width at Nut: 1 3/4"
• Fingerboard Width at 12th Fret: 2 1/8"
• String Spacing: 2 5/32"
• Frets: 20

Hardware

• Tuners: Grover Nickel StaTite 18:1 (Vintage Button)
• Bridge: Ebony (GE Modern Belly)
• Saddle: Compensated Bone
• Bridge Pins: Ebony
• End Pin: Ebony

Electronics

• Electronics: None

Miscellaneous

• Serial Number: 3053226
• Case: 5-Ply Hardshell Included
• Country of Origin: USA
• Orientation: Right-Handed
• Strings: Authentic Acoustic Lifespan 2.0 (Light)

Why Buy from Tone Shop Guitars?

Tone Shop Guitars is the premier Martin dealer in the Dallas-Fort Worth area — and beyond. Our staff are players and enthusiasts who know these instruments inside and out, and we hand-inspect every guitar before it leaves our doors. When you buy a Martin from us, you're not just getting a great guitar — you're getting the expertise, the care, and the follow-through that a purchase like this deserves. Stop by any of our three DFW locations or shop online with confidence. We're here to help you find the right one.