Burlington Slate quarried and manufactured around 3,450 square feet of Kirkby slate tiles for the floor, and pieces measured 12 x 12 x ½ inches. The slate was supplied through two local distributors - Oregon Tile and Marble of Portland, OR, and Quarry SE Inc. of Seattle, WA.
According Brian Castro of Dave’s Tile, Inc. of Lombard, IL, which served as the contractor for the project, overall construction on the 30th floor took approximately 720 man-hours to complete. “The job was started in July, and the main installation was done a month later,” he explained. “We went back a few times for repairs and touchups, and had as many as five to six installers on the job at a time.”