I've used oak, alder, pine, birch, mahogany with or without fingerboard. No problems! Thickness and string tension needs some planning when stringing up. Slicing the neck wood and gluing it back together (laminating) might make it stiffer. I made my best solid lap steel from finnish tar alder, I glued a mahogany fingerboard on it. Warping will never be the issue on a lap steel, though.
I have now built six tar alder neck and last five seems to work on.I laminted extra wood to neck inside box .Neck is 42 mm x 28mm.These are without fingerboard.
I use alder quite a lot. I usually add a hardwood fingerboard (walnut, cherry etc.) to add a bit more strength and durability. I haven't had any warping yet.
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I've used oak, alder, pine, birch, mahogany with or without fingerboard. No problems! Thickness and string tension needs some planning when stringing up. Slicing the neck wood and gluing it back together (laminating) might make it stiffer. I made my best solid lap steel from finnish tar alder, I glued a mahogany fingerboard on it. Warping will never be the issue on a lap steel, though.
I use alder quite a lot. I usually add a hardwood fingerboard (walnut, cherry etc.) to add a bit more strength and durability. I haven't had any warping yet.
I have made some using it .. is easy to work and get a good finish on it ,, use for both 3 and 4 stringers with no truss rod ,,, had no issue
I think I try it on built,then we see then how it works.
Alder is usually used for bodies and fingerboards, but I've seen some builds on this very site using Alder for necks, so I guess it must work...