Abstract: A chalk line anchoring device is disclosed for anchoring an end of a chalk line on a building element. The anchoring device may comprise an elongated base wall for positioning adjacent to an edge of the building element. The base wall has opposite ends and opposite sides. A notch is formed in the base wall for receiving a chalk line. A first side wall is mounted on and extends from the base wall, and a second side wall is mounted on and extends from the base wall. The anchoring device also includes structure for resisting movement with respect to the building element.

Abstract: A router template apparatus for routing stair stringers to accept end sections of stair members to facilitate building a stairway. The router template apparatus includes a rectangular frame member that has an opening extending therethrough for receiving a router. The frame member comprises a pair of elongate side portions and a pair of elongate end portions. A pair of brace members is pivotally coupled to opposing corner portions of the frame member. Each of the brace members is oriented generally parallel to each other when attached to the frame member. When inside edges of the brace members are positioned adjacent to side edges of a stair stringer and the frame member is positioned atop a broad surface of the stringer, the opening guides the router to facilitate cutting out a recessed section in the stringer such that an end portion of a stair member is positionable in the recessed section to facilitate building a stairway.