Assemble the Base
Use Image 1 as a guide for cutting the sides to shape using a jigsaw or band saw.
Position the sides flush with the ends and edges of the bottom and attach using glue and #17 x 1-1/2-inch wire brads (Image 2).
Use Image 3 as a guide for cutting the back to shape. Position the back flush with the sides and bottom edge of the bottom and attach using glue and 1-1/2-inch brads.
Use Image 4 as a guide for measuring, marking and drilling 1-1/4-inch holes in the front as shown in Image 5.
Rip the front to 2 1/2 inches wide, making sure to cut through the holes (Image 6).
Position the front flush with the ends of the sides and bottom edge of the bottom and attach using glue and 1-1/2-inch brads.