Patent ID: 7478485

Claim:
A building framing construction layout tool comprising: a. a frame with a first side and a second side; b. the frame arranged with a triangular section arranged in a right isosceles triangle-shaped outer periphery composed of a first (plumb cut) and second (seat cut) right angle periphery edge and a hypotenuse periphery edge, a pivot opening positioned adjacent to the right angle, an adjustment slot located at a fixed radius from the pivot opening starting at a location a set number of degrees from the first (plumb cut) right angle periphery edge and continuous to a position a set distance from the second (seat cut) right angle periphery edge; c. the frame further arranged with a slot extension section with an adjustment slot extending from the triangular section adjustment slot and located at the same fixed radius from the pivot opening, the slot extension section periphery with an interior and exterior periphery edge arranged adjacent to the adjustment slot and a distal periphery edge arranged substantially coplanar with the triangular section plumb cut right angle periphery edge; and d. a pivoting guide with a first portion with two substantially parallel and straight edges and a substantially parallel first and second surface, the second surface arranged adjacent to the frame first side, and a second portion arranged substantially similar to the first guide portion and located with the second portion first surface adjacent to the frame second side, the two guide portions connected at the frame pivot opening with a hinge pin and further arranged with a guide pin between the portions adjustably arranged in the frame adjustment slot and further arranged to releaseably clamp the pivoting guide portions to the frame such that the angular location of the pivoting guide may be adjusted to a desired location in the frame adjustment slot and releaseably secured in that desired location.