Cut the pieces for the front stretchers and drill pocket holes in each end. Attach to the side panels as shown using glue and 1-1/4” pocket hole screws. The top stretcher should be positioned so the pocket holes are facing up while the lower stretcher is positioned so the pocket holes face down.
Attach the lower stretcher at the center of the lower side stretchers. The piece can be positioned so the pocket holes face down.
Cut the pieces for the dividers. Attach to the front stretchers as shown using glue and 1-1/4” brad nails through the stretchers into the dividers.
Cut the pieces for the slide supports. Drill pocket holes in each end of each piece. Position them as shown and secure using glue and 1-1/4” pocket hole screws into the front dividers and the back panel.