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Learn More About D-Tube Neck Beam ™

The Ultimate in Instrument Neck Bracing

The Ultimate in Instrument Neck Bracing

The DragonPlate® Carbon Fiber D-Tube Neck Beam™ has been specifically designed to stabilize instrument necks with its unique D-Tube profile. The D-Tube Neck Beam™ significantly increases bending and torsional stiffness and weighs less than the wood it replaces! Builders also say that the D-Tube significantly improved the tone of their instruments.


D-Tube Beside Routed Guitar Neck

D-Tube Beside Routed Guitar Neck

D-Tube Inserted into Guitar Neck

D-Tube Inserted into Guitar Neck

D-Tube in Finished Guitar Neck

D-Tube in Finished Guitar Neck


Installing the D-Tube Neck Beam™

The D-Tube Neck Beam™ comes in two sizes: 3/4" wide in a straight or tapered profile and 1/2" wide in a straight profile. The 3/4" tapered version is intended for use on thin necks, as seen on certain guitars, while the 1/2" straight is meant for smaller necks like those of a mandolin.

Installing the beam is quick and easy. First, use a 3/4" or 1/2" core box router bit to make a groove in the neck. Then, bond the beam in the groove. For straight beams D-Tubes, the groove should have a constant depth. Tapered beam D-Tubes require a shallower groove at the head, ideal for thin necks.


Guitar Neck Prior to Routing

Guitar Neck Prior to Routing

Guitar Neck After Routing

Guitar Neck After Routing

D-Tube Installed in Routed Neck

D-Tube Installed in Routed Neck


Replace Typical Approach

The DragonPlate D-Tube Neck Beam™ replaces the typical approach of a truss rod and carbon fiber reinforcement beams with a one-piece insert. Cutting the groove for the d-tube is a much simpler operation and requires less labor than fitting a truss rod and carbon fiber reinforcement strips.


You can learn more about other builders' experience installing the DragonPlate D-Tube here. >>

Product Selection

Use the links below to filter our D-Tube product selection table based on your intended instrument or jump down to our full product line.






View All D-Tube Neck Beam™ Products
Engineering Services We are an innovative engineering firm, specializing in the design, analysis, prototyping and manufacture of parts and products made from carbon fiber composites. Learn More
Manufacturing Services We offer in-house design and manufacturing for your carbon fiber part, assembly or system. Learn More
CNC Cutting Services DragonPlate® has been CNC machining carbon fiber parts for our customers for many years. Learn More
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