Tailgating size boards
Tailgating, or Travel Sized Boards are 3 feet long by 2 feet wide. They are similar to official size boards in almost every way, but they are a foot shorter.
Most Tailgating Boards are 4" high in the front, and 12" high in the rear. The hole is 6" wide, and is centered 9" from the rear of the boards.
Some people will change the front or rear height so the boards retain the same angle as their 4 foot counterparts.