Patent ID: 8122611

Claim:
A jig device for accurately measuring an opening when installing shelving, windowsills, molding, and similar construction material, the jig device comprising: a first elongated bar having a first end, a second end, a first side, a second side, a top surface, and a bottom surface; a second elongated bar having a first end, a second end, a first side, a second side, a top surface, and a bottom surface; a first aperture formed in the first end of the first elongated bar; a second aperture formed in the second end of the second elongated bar; first incremental measurements marked on the first elongated bar, the first incremental markings reading right to left; second incremental measurements marked on the second elongated bar, the second incremental markings reading left to right; a first slot formed in the first elongated bar; a second slot formed in the second elongated bar; first fastening means extending through the first slot and the second slot for slidably connecting the first elongated bar to the second elongated bar and tightenable to inhibit movement between the first elongated bar and the second elongated bar; a first angle paddle having a first end, a second end, a first side, a second side, a top surface, and a bottom surface; a second angle paddle having a first end, a second end, a first side, a second side, a top surface, and a bottom surface; a first paddle slot formed in the first angle paddle; a second paddle slot formed in the second angle paddle; second fastening means extending through the first aperture and the first paddle slot for slidably and rotatably connecting the first angle paddle to the first elongated bar and tightenable to inhibit movement between the first angle paddle and the first elongated bar; and third fastening means extending through the second aperture and the second paddle slot for slidably rotatably connecting the second angle paddle to the second elongated bar and tightenable to inhibit movement between the second angle paddle and the second elongated bar; wherein upon positioning the jig device within an opening with the second sides of the angle paddles rotated and moved along the second and third fastening means and positioned on the outside of the opening, the alignment of a common number on the first incremental measurements and the second incremental measurements indicates a center point for the opening.