After achieving the desired lengths and widths for the initial top and bottom cabinets, my wood shop teacher and I thought it’d be appropriate to start the build from the bottom (cabinet) up. However, after cutting the initial dados for the base of the cabinet, we discovered the top surface was not the desired width. This was probably due to the fact that running a 4×8 sheet of plywood through a small shop table saw is difficult (especially when three different people have hands on the board). So, after some re-measuring and ripping the widths down by (what I believe) was 3/4” we achieved the appropriate fit of the base.
-- "Nothing is over until we say it's over! Was it over when the Germans bombed Pearl Harbor?!"