We’re right around the corner. Building Products has been manufacturing Concrete Masonry units for over 50 years. Local to St. Louis, we are committed to providing the very best customer service and support. Our local production allows us to manufacture and deliver our products without costly delays, keeping your project on time and on budget. Building Products Corporation prides itself on our workmanship and attention to detail. All of our Cast Stone products are created, specific to each and every unique job. Cast Stone is made from white or gray cement, sand, and crushed stone. Each piece is then hand crafted, custom and specific for your job. Building Products offers an endless variety of styles, shapes and colors of Cast Stone to choose from.