All Nelson Granite Columbariums are manufactured using our signature all granite construction, using no aluminum or concrete featuring 6” thick floors, 4” walls and 4” center walls and roof. Each niche (including the doors) is constructed of 1-1/4” solid granite. The size of each niche is 12-1/2” x 12-1/2” x 12-1/2”. As with all of Nelson Granite’s product lines, these elegant and dignified models impart the assurance of superior quality and craftsmanship.