The deck was extended 12 feet in order to honor my wife's request that we not lose any space in the existing deck area. Appropriate ornamentation was a must. The outhouse is on wheels, and once the critter panel at lower front is removed, it can be wheeled out of the way easily. The outhouse can be rolled out of the way anywhere on the deck. The pier column weighs an estimated 2.5 tons and was poured with a 3 inch PVC pipe running to below deck.
Wiring is run through the pipe, under the deck and into the house.
The pier is isolated from the deck to eliminate vibration. So far, this seems to be a very workable setup - I'll know more after we've used it a couple of months.