Martin Guitar Truss Rods
3 Different Styles of Truss
Rods: T-Bar, Square Bar and Adjustable Truss Rod shown
1934 - T Bar Truss Rod Introduced
1967 - Square Bar Truss Rod Introduced
1984 - First batch of Adjustable Truss Rods become standard
Upon finding no truss rod nut or other means of
adjustment, many Martin owners have assumed their instrument had no
truss rod at all. However, as seen above, varying styles of truss
rods have been used by C. F. Martin. While the T and Square bar rods
offer no mechanical adjustment the necks are still stiffened by an
inlayed rod.
Prior to common steel string usage and during
steel shortages during war time many manufactures have used a
inlayed wood strip to strengthen the neck.
With the nut removed, the neck reinforcement
strip can be clearly seen on this vintage Gibson.
Related Articles:
Adjusting Truss Rods
Martin Warranty
Repair
Neck Problems
