12 sq ft internal top wing with 54" side boards. Dimensions: CENTER SECTION 48" wide by 36" long. Side boards: LEFT 54" by 26" RIGHT 54" by 24". Standard offset position of the side boards is LEFT sticks out 12 1/2" from nose cap and RIGHT sticks out 2 1/2" from nose cap. Position of side boards can be changed per customer request. Wing comes standard with a 1" wicker bill. Roller polls included.