The dimensions are 16 wide x 18″ long so when folded is 9″ and is the large fishENG leader boards. We make these with the clear 20 gauge premium vinyl and black velcro fasteners. These have been requested by fishermen and guides numerous times and finally I am making covers that fit them. I will make them for the other size fishENG boards as well.
What you can do if you do not want the velcro on the side is trim it off and they will still fit in the Plano 3700 box