40 foot deck, 5 foot dovetail, 6 foot top deck making 51 feet of usable trailer. Triple axle dually. 102 wide. Very nice trailer, no rust. Electric over hydraulic brakes. Pulls dead straight. Lights and brakes work. 2 speed jack. Comes with king pin sleeve also if youd want to pull with a semi. Exceptionally heavy built trailer. Torque tube and frame bridging. Great for hauling hay, heavy equipment, or hotshot and more