CONTRACTORS • Video Library • Info Sheets • FAQs Frequently Asked Questions – This area of our website is currently being developed. Please check back soon for updates. Search for: Since 1980, State Material Mason Supply has been providing superior customer service, an extensive selection of quality products, and competitive prices. Stop by one of our four locations! STORE HOURS: Mon-Fri: 6:30am-5:00pm Sat: 6:30am-1:00pm Sun: Closed ___________________________ We inventory a large selection of Nicolock pavers and retaining walls.