We understand that bulkheads are to protect your biggest investment, your home. You can choose from vinyl or wood. We make sure the poles we use are in the ground deep enough. We also put a tieback rod on every pole. We put filter cloth on the back of the entire wooden bulkhead. The filter cloth lets water run through the wall and stops the dirt from leaking out of the wall. A tie back rod is placed on every pole to help support the wall. These are anchored with a butt of a pole and concrete.