Abstract: A tool useful for marking and constructed of a flexible material which includes a flat member having a structural layer of a predetermined shape with first and second parallel surfaces, the structural layer having marking edges perpendicular to the first and second parallel surfaces for measuring, aligning and marking, a first wear rim along the marking edges extending a uniform distance away from the first parallel surface of the structural layer, a second wear rim along the marking edges extending a uniform distance away from the second parallel surface of the structural layer, a plurality of first marking indicia on and extending away from the first parallel surface along the first wear rim, a plurality of second marking indicia on and extending away from the second parallel surface along the second wear rim, wherein the first wear rim extends away from the first parallel surface a greater distance than the first marking indicia extend away from the first parallel surface, and wherein the second wear rim e

Abstract: A measuring tool including a flat member having the shape of a right triangle and having upper and lower surfaces and a first side and second side which form a right angle at their intersection, a tee affixed along the edge of the first side which is perpendicular to the flat member and extends from both the upper and lower surfaces of the flat member, a first slot extending along the first side and running approximately parallel to the first side, a first stop bolt slidably affixable in the first slot, a second slot extending along the second side and running approximately parallel to the second side; a layout bar having a thickness equal to that of the extension of the tee from the surface of the flat member, the layout bar having a fastening slot perpendicular to the second slot and being alignable with the second slot; the layout bar having a recessed channel running along its length, and a second stop bolt slidably affixable in the recessed channel so that the tee and the layout bar when affixed to the f