ColumbariumUSA the columbaria company to turn to for quality design and engineering. Our key lockable aluminum interior locking door system is greatly appreciated by cemetery management for its ease of operation and level of security, especially when the granite shutter is removed for engraving. Our Aluminum is marine grade, and corrosion resistant. It is the ideal choice for North America’s extreme climate conditions. ColumbariumUSA's 100% granite exterior columbaria are created to stand the test of time.