Patent ID: 7096592

Claim:
A method employing an elongated one piece jig having two surfaces substantially perpendicular to each other and including equally spaced holes along one surface for locating a plurality of equally spaced pivot hole locations along a stairway stringer and hole locations along said surface for locating mounting holes for pivotal tread/riser support brackets along a stairway stringer comprising the steps of: a) placing said jig on a side of said stairway stringer, said jig being axially along said stringer and having one perpendicular leg of said jig along a surface of said stringer and the other surface of said jig along a perpendicular face of said stringer, said jig having lateral means along said other surface for locating the positions for said plurality of spaced pivot holes from the edge of and along a surface of said stairway stringer and axial means along said other surface for locating equally spaced holes for locating the positions of said plurality of equally spaced pivot holes axially along said surface of said stairway stringer, b) marking said surface of said stairway stringer for said plurality of said equally spaced pivot holes located laterally from said side and axially along said stairway stinger, c) repeating said placing and marking of said surface of said stairway stringer with said jig placed along said side of said stairway stringer, d) and placing a pivotal tread/riser support bracket along said surface of said stairway stringer at each of said located positions in accord with said markings.