This Bimini Top Boat Cover is more of a medium duty cover. I say that it is medium instead of light duty, strictly because it comes with an upgraded 900D canopy cover rather than a 600D. If it was a 1200D with better frame I would say it was more heavy duty. However, for the value, its pretty good. It does come with a lot of parts and pieces, so it will take a little time, but its really not hard to put together. Just remember to stow it before trailering and driving the boat home. Highway speeds will catch that top like a parachute.