We like our lovely lady Vingilótë and her colorful wrap. The rule of thumb I learned was a fender per ten foot and one extra. For Vingilótë that’d make six.
Well, we have eight fenders , cylinders, with custom covers in thick soft terry cloth like material. For docking, and departing from the dock I like the big round fenders at bow or stern. We also have them out at the dock as the 30+ knot winds the last week push her into the dock and I like the big balls so she doesn’t twist along the dock.
We also have two huge (2’ across, 5’ tall) inflatable fenders in woven fender covers that are our last resort “oh shit” fenders. They’ve come in handy once or twice and when you need them they are a godsend.
Putting that many fenders out and at the right height is a pain: you don’t want to have the fender covers in the water, you want them low enough on floating docks. To that end we changed our fenders to be attached with a bowline to a soft shackle. They are labeled as our boat’s stanchions, padeyes, and cleats are port/starboard symmetrical so we can quickly put them out, knowing they are at the right height.