A plastic box was not cutting it – the lid would be left open, and we couldn’t keep wet items in there till they dried.
Make the cuts per the cut list in the plans. You can easily modify the plans to change the size of the box if needed.
The short sides are built by attaching the supports to the slats using 2½”” wood screws.
Lay the long sides on a flat surface with the spacers between them and attach the short sides to the long slats using the 2½” wood screws.
Drill pocket holes on both ends of the slats. Check out my guide to all things pocket holes.