For generations, Oldcastle APG has been North America’s leading manufacturer of architectural masonry products and materials. Now Oldcastle APG embarks on a new journey, consolidating our many masonry products, services, and expertise into the single brand of Echelon. Echelon provides the masonry industry with a singular go-to source for high-quality architectural masonry products and reliable service partnerships.

• See also:
• Masterformat 2004
• 04 00 00 - MASONRY
• 04 01 00 - Maintenance of Masonry
• 04 01 40 - Maintenance of Stone Assemblies
• 04 22 00 - Concrete Unit Masonry
• 04 22 23 - Architectural Concrete Unit Masonry
• 04 73 00 - Manufactured Stone Masonry