You will need a small piece of 2X3 or 2X4 that is about 6 inches long.
In addition you will need a pine slat 1.5 X .25 two pieces cut about 10 inches long and another about 4 inches long.
You will need some wood glue, a drill and 7/8 inch wood bit and counter bore ( a 1 inch wood bit will also work).
Some sort of cutting and sanding implements. I used a stationary belt/drum sander from Rigid