How to Build Plyo Boxes: 13 Steps (with Pictures) - wikiHow
29-08-2006· Apply Gorilla glue in a thick, even coat down the thin sides of the plywood. Work one piece at a time, then press the pieces together. Leave them to dry for 10-15 minutes before moving on to the next piece. Wipe off the excess glue that drips down the sides of the plywood …