Valley Supply offers a number of "Hands On" wall and paver displays featuring Cambridge's most popular styles and colors. Explore the color and quality of Cambridge products at our location. Long Island's One-Stop Source for Cambridge Paving stone is Valley Supply, a Premier Dealer. We specialize in Cambridge Paving stone and mason supplies & materials at Valley Supply. Unlike big-box stores that sell a limited selection of supplies, our staff members are experts in this field and know what your project will require from start to finish. Since 1956, customer service and satisfaction have been our top priorities. Our staff is happy to assist you in determining the amount of materials and tools you will need for your project.