The side that you cut these grooves into will become the inside of the door panel. This groove should match up with the top and bottom band grooves, thus allowing the doors to close snuggly. To finish off the doors, attach the door strengthening bar to each door. Further, this panel also provides a stronger place to attach the door pull into. These mean that you do not need to make insets for the hinges and, further, will allow for the fact that the hinges must fit tightly against the front legs.
Cut air vents out of back.
Because you will be putting the VCR, cable box and other electrical appliances inside of the unit, it is a good idea to cut some air holes in the back panels of the cabinet. Any size of air hole can be cut, but the smaller the hole, the more you will need to cut. Finishing Finally, sand down the entire unit and finish with wax or oil.