The hinged gangway is 12 feet long. Obviously the longer it is then there is less slope, but the weight could be an issue. I thought about a 16' gangway, but would use tubular steel for my stringers. That opened up another set of issues regarding screwing the lumber into the metal. So, I went with a 12 ' gangway. As you said, 2x10's would be needed for 16' length. It will be very heavy. You will certainly want an extra float where the gangway interacts with the floating dock. I'll try to get some pictures this weekend of the slope when the pond is down as it is now...du
