Cut two boards from 3/4-inch plywood, each 24 inches wide by 48 inches long
Build each frame with 2×4 lumber, keeping the board surface smooth and sturdy
Attach the plywood top to each frame with screws and wood glue
Cut a 6-inch diameter hole centered 9 inches from the top edge of each board
Round the front edges and sand all surfaces smooth
Cut and attach legs from 2×4 lumber so each board stands 12 inches high at the back
Use bolts or heavy-duty hinges to secure the legs so they fold or lock in place
Paint or stain the boards if desired
Seal the wood with exterior polyurethane for durability
Make bean bags from durable fabric, filling each with about 15 to 16 ounces of corn feed or plastic pellets
Sew eight bags total, four of one color and four of another
Place the boards 27 feet apart from front edge to front edge for official play
Adjust the distance for casual play if needed