Gather treated lumber, plywood, screws, key rings and u-bolts to construct and screw together a set of washer boards. To build two washer boards for the popular washers game, cut four pieces of 2x6 lumber to 48 inches and six pieces of 2x6 lumber to 9 inches in length with a saw.
For one washer board, place two of the shorter pieces of lumber parallel to each other, and connect the two with one of the 9-inch boards using a power drill and deck screws. Attach a second 9-inch board to the other side by inserting deck screws to both ends. Use one of the remaining 9-inch pieces of lumber to create a cross member on the center of the box. Cut a piece of plywood to 12 inches wide and 48 inches long, and attach it to the top of the box with deck screws. With a compass and pencil, draw three 2-inch circles on the top of the plywood, and cut out the circle holes using a drill and small saw.
Repeat the steps to construct the second washer board. To ensure the distance between the boards is consistent, attach a u-bolt to the end of each board, and attach a 12-foot chain to connect the two washer boards.