These one of a kind pontoons have been both engineered and custom designed exclusively for Pontoon Porch Inc.  Each of the rectangle shaped pontoons found under you pontoon porch, have 800 lbs of buoyancy. Each of the angled pontoons, found under your pontoon porch, have 400 lbs of buoyancy   All pontoons are tongue-n-grooved together to ensure proper alignment. Back to PontoonPorch.com Home Page