You cannot safely cut tempered glass after it has been tempered
If you need a different size, cut the glass before tempering
If you must alter tempered glass, replace it with a new custom-cut piece
Use a professional glass shop for custom cutting and tempering
Wear cut-resistant gloves, safety glasses, and long sleeves when handling glass
Work on a flat, stable surface with proper support
Mark the desired dimensions before ordering or cutting raw glass
Use a glass cutter only on non-tempered glass
Score the glass once with firm, even pressure
Snap the glass along the score line with proper tools
Smooth raw edges with a glass grinder or sanding tool
Have tempered glass cut only by a certified glass fabrication service if any modification is needed
Dispose of broken tempered glass carefully in a sealed, labeled container