It's an easy install. They have great directions and a video that come with the tops. The one I installed on a Whaler Outrage...if memory serves we marked where the mounting flanges should go, 5200'd them to the deck, then drilled the holes and installed screws in Epoxy. That gives you a watertight conection to the deck. Then the tower legs go into the flanges and the rest is e-z-p-z
