MACON CONCRETE PRODUCTS, INC. manufacturers a large number of foundation vents. The vents or "areaways" are located around the perimeter of a pier foundation/or suspended slab (where piers drilled and beams frame above ground leaving an air void of 6 to 12 inches. The purpose of the areaway is to allow air flow circulation underneath the structure and to maintain the integrity of the void. Every project's specifications are custom engineered. We manufacturer sizes and depth of areaway to fit a specific project design.