First, cut 4 26.25" pieces of 2"x4" wood.

Second, mark each 5 inches down on a long side and 1.5" across the bottom from the opposite side as shown in the pictures and included leg drawing.

Next, mark a straight line between the two marks (a yard stick is useful for this) and use a circular saw to cut across the line on each leg.

Finally, sand each leg to smooth corners and prepare them for finishing. (I used a belt sander in a jig and then finished with an orbital sander)