A concrete shelled pad with the weight of plastic, strengthened by a fiber-cement coating, flexes instead of cracking or breaking. The textured surface prevents unit slide and allows water drainage, while the engineered core prevents warping and provides a solid bottom to resist settling. Unaffected by soil conditions, UV, temperature extremes, and other... A concrete shelled pad with the weight of plastic, strengthened by a fiber-cement coating, flexes instead of cracking or breaking. The...