AIA/CES Learning units: 1 This one-hour program covers the history of limestone, quarry & fabrication operations, overview of specifying limestone, comparison of caststone versus limestone, technical guidance, and cost effective design. You Might Also Like Design Tactics for Stone Masonry Products (HSW) November 20, 2016 Sustainability November 20, 2016 Commercial Applications for Interlocking Concrete Pavers April 19, 2017