Some retailers of precast concrete splash blocks include Century Group, Home Depot, Midstate Concrete and Modern Precast. Midstate Concrete sells 20-inch splash blocks that weigh 30 pounds and 30-inch splash blocks that weigh 60 pounds. They can be used for residential and commercial buildings.
Home Depot offers an 18-inch-by-10 1/2-inch-by-3-inch splash block in some of its stores. It weighs 31 pounds.
Century Group's splash blocks are 30 inches long and weight 48 pounds. They can be made in different colors. Century Group's splash blocks are made with 5,000 pounds per square inch concrete that is allowed to cure for 28 days. Unlike lightweight plastic or fiberglass, the weight of these splash blocks keeps them from being blown away, and their composition makes them impervious to fading or damage by the sun's ultraviolet light.
Modern Precast offers a 30-inch splash block that weighs 49 pounds and a 36 inch splash block that weighs 135 pounds. They can be bought in plain gray or white cement, or colors can be mixed in. The colors that can be mixed in with the gray cement include charcoal, peach, adobe, taupe and sunset rose. The colors that can be mixed in with white cement are almond, wheat, ash and light tan.