Truss rod question

[Max Girouard]

I was wondering, for truss rods, what is the minimum amount of wood that you can have on the back of the neck before you would run into structural issues? I would like to install a two way adjustable but the pocket needs to be routed much deeper than if I were to use a traditional rod. I am worried that there won't be enough wood left, unless I kept my neck much thicker than planned.

[martinedwards]

so long as the ends of the rod are in the heel and headstock volute there shouldn't be much trouble and you could get away with a LOT less than you think is sensible.

[Michael Lewis]

General rule is to have no less than 1/8" of wood under the truss rod. #The rod works best near the back of the neck, but shouldn't crack the wood, which it can do it the wood is left too thin. #Read and follow the instructions for the rod. #