How Fence Posts Fail in Frederick
Wood fence posts in Frederick fail from the bottom up. The most vulnerable point is the soil-contact zone, where moisture cycles in and out of the wood. Posts that were not pressure-treated to the correct exposure rating (UC4A or UC4B for ground contact) rot faster. Posts set in clay soil that holds water rot faster than posts in sandy soil.
A post that looks solid at the surface may be hollow at grade level. We probe posts at the base with a screwdriver or awl before recommending repairs — a post that penetrates easily is not structural. Post bases that wobble when pushed are failing; posts that stand firm when pushed but show surface checking are not.