PVC and concrete spacers are typically used in heavy-duty applications such as foundations, base plate building construction pre-cast yards, composite slabs, base plate woven, and base plate woven with light rebars. PVC spacers are available in a variety of designs and for a variety of applications. They are also available in a variety of sizes and colors. Concrete spacers are heavy-duty concrete materials that are used to support large reinforcement in vertical and horizontal applications with one, two, or three separate covers. They are a product designed for use in concrete construction with joints that are subject to hydrostatic pressure on one side. They act as a barrier within the joint, preventing liquid from passing through or across it. They are embedded in the concrete on both sides of the joint and span the joint.