Stepstone, Inc. is proud to offer a variety of precast concrete products for your next project. Please review the photo galleries, color charts and architectural details. Mouse over to highlight photos. Click thumbnails once to enlarge. Sonorastone® Precast Concrete Pavers by Stepstone, Inc. are available in six (6) standard sizes and seven (7) uniquely variegated colors. Visit our brochure catalog and paver detail series more information.