P.S. My floating dock has no connection to the ground, rather I have diagonal chains running between opposite corners of the fixed dock and the floating dock which are both 12 feet wide. This allows the gang plank to be fastened to both potions of the dock with tee hardware. The chains rub right under the gang plank, the the chains remain taught as the water level changes. There is some swing on the floating dock, but not too much. I used turnbuckles to tighten up the chains.
