I'm going to build a floating dock/swim platform for my pond this spring. I was hoping to get some suggestions on the best practices to minimizing wobble. I'm considering a 10x10' dimension with a basic construction consisting of 2x12s (or 2x10s) for the frame and joists, and standard 1x6 decking. It would be anchored to the bottom rather than supported by poles or posts. Because pond is man-made with a clay liner, I'd be hesitant to compromise the seal by ramming a anything into it.

Does anyone have suggestions on where to find a good starter plan as well as the types of barrels/floats to use? We'd want to use this for swimming and fishing, but also have it steady enough to support a couple of chairs without falling off your seat whenever someone moves.

And finally, since this would need to be removed each fall, would it be better to build it in two attachable sections? Any design features that might help it drag out of water easier.

Thanks
Shawn