Staples Low-Pile Chair Mat, 45" x 53"Protect the floors in your office with this Staples Low Profile Chair Mat. The generously sized 45" W x 53" D mat covers your entire work area to prevent scratches or marks from your office chair. The mat has a lip that fits under your desk, so your chair won't catch on the edge of the mat. A cleated backing helps keep this mat in place over low pile carpet.