rail bands ?

What dictates the width and depth of rail bands? on JC’s vid he put em at 2" and 4", I think, does that work for most anything? What’s the rule of thumb on this? thanks JR

you the shaper pretty much dictate the measurements, depending on what you want the rails/deck crown to be like. when using a new blank/planshape i draw out cross sections of the rail area and experiment with what different measurements create. i do this for the middle mark and halfway between middle and tail/nose. when do decide and hack em out, record all the measurements carefully so you can reproduce/change em around.