Hi Ron T,
It is complicated. We are surrounded on three sides. We bow in. In front of the bow is the main electrical box, so we need to stay 2 feet back from that. Starboard we have 54 feet of the main dock and port is a 30 foot finger pier. Our dock is 12 inches above the waterline. We would measure about 28 ft back from the tip of the pulpit and 12 inches above the waterline. We have some flexibility, based on how we position the boat in the slip. We only need 3 inches of taper on each side at the widest point to make it work. We found one on the hard, but the manager wouldn't let us in the yard to measure, because of insurance. First time that ever happened. He measured it for us and got 13.8. We need to do it ourselves, because my husband knows exactly what he is looking for. Our slip is 13.6, but it all depends on the taper of the hull. Our friend has a 15 beam in a smaller slip then ours, because it narrowed so much. Aren't you glad you asked!