A bulkhead is generally built to protect needed shoreline from eroding elements near a watershed. Coastal bulkheads are most commonly constructed with 2.5 CCA treated lumber or commercially developed vinyl products. Coastal property owners typically seek to develop bulkheads in an attempt to slow large landslide erosion caused by wave action.Wooden bulkhead construction is economical and does a fine job protecting property from erosion. Built with 2.5 CCA treated wood, the bulkhead is protected from parasites in the water. Construction of a vinyl bulkhead is generally a bit more costly than wooden bulkhead, but with many advantages. Advantages include: chemical resistance, mildew resistance, and marine borers resistance. A vinyl bulkhead is very flexible and has an elasticity that can move with high pressure waves without breaking apart or caving in. Vinyl bulkhead can endure extreme heat or cold without expanding or breaking.