high density fiberboard known as hardboard is an engineered wood product made from saw dust and resin similar to particle board and medium density fiberboard except much denser stronger harder and more water resistant than particle board and medium density fiberboard with many uses including store display shelving furniture construction consumer products and more
my neighbor used high density fiberboard on his garage that is strong hard and holds much better to water than particle board and medium density fiberboard what an amazing product