Corliss Resources Inc

Ecology Blocks are concrete building blocks that come in an array of sizes and designs. They are the perfect material for building structurally sound retaining walls. Ecology blocks have raised “bumps” on the top of the block and a matching indented groove along the bottom of the block. This allows the blocks to “fit” together in a manner which minimize the possibility of slipping. CRI’s ecology blocks are available for delivery or pick up from our Sumner and Federal Way plant. Please call ahead to check availability for this product.