In this video of the videoHow to Build a Surfboard, I go over shaping the rails and start marking out the guidelines (railbands) for the rails.\rbr\rbrThere are two angles filmed, one from my head and the other from a fixed camera. \rbr\rbrFor a reference on how to mark the rail bands:\rbrScroll down to the section How to Shape Surfboard Rails. There will be a link to a PDF with boxy and knifey rail bands.