How do you miter two boards of different widths together?

Finish Carpentry
Trim & Molding
Estimating & Takeoff

Joining stock of two different widths at a corner needs two different angles, and the wall is rarely square enough to work from a drawing. Capturing the real wall angle with the T1 Tomahawk and entering both widths returns an angle per piece, 69.2 and 22.2 here. You cut to computed angles instead of finding them by trial and error.

Why one angle will not work

Different widths need different angles
T1 captures the real wall angle first
Enter both widths and the joint angle
An angle returned for each piece
No finding it by trial and error

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When a 2x4 meets a 2x10 at a corner, the two pieces need different angles, and the wall is not square either. Capture the wall angle, enter both widths and the joint angle, and the calculator returns the angle for each piece. In this case the narrow piece wanted 69.2 degrees and the wide one 22.2.