Abstract: An adjustable framing tool 10 for laying out hip and valley rafters 216. A planar body 12 has a measuring edge 14 and first and second scribing edges 16,18 disposed at right angles to the measuring edge. An arm assembly 20 comprising first and second parallel arms 22,24 disposed on opposite sides of the planar body is rotatably mounted on the planar body. The arm assembly extends across an arcuate slot 40 in the planar body centered on the pivot of the arm assembly. A thumb screw 42 selectively positions the arm assembly at any rotational position. The measuring edge is numbered in increments from 0 to 12, the length of the measuring edge being equal to 12 times the secant of the angle c formed by the hip or valley rafter 218 with the nearest common rafter 208. The slot is numbered in increments expressed as the pitch of the main roof 202.