Official size boards
The official size for Cornhole boards, as declared several years ago by the ACA is 4 feet long by 2 feet wide. The rear edge is raised 12 inches from the ground, and the front edge is 3.5 to 4 inches high. The hole is 6 inches, and is centered from left to right and 9 inches from the rear of the board.
Two main board styles exist for offically sized 4x2 cornhole boards.