Standard Solid Parking Blocks are all 4” in height and our original design style. Our standard parking blocks also come in a variety of our standard colors available in 4’ and 6’ lengths. Our standard solid blocks are virtually indestructible, user-friendly, easy to install, maintenance free, lightweight but stable, chemical and weather resistant, UV stabilized and lifetime warranty against breakage and cracking. Our solid parking blocks are the original chemically formulated plastic block that offers the durability you would expect from a product made in the USA.