Two Rycon employees were installing glass marker boards in a nearly completed space. Each employee had a suction cup on the face of the board and a hand on the bottom of the board. Upon hanging the third board in sequence on a hang strip mounted to the wall, the board needed to be moved about half an inch to butt tightly to the adjacent one. When the employees moved the marker board, it shattered causing half of the board to fall and cause a severe laceration to an employee's left wrist.