Frameless mirrors offer clean lines to complement every type of interior design and are easy to care for. One piece can be up to 28 sq. ft. (2.6 m²), as long as either H or W dimension is less than 84" (2134mm). Mirrors larger than 28 sq. ft. (2.6 m²) or with either linear H or W dimension larger than 84" (2134mm) shall be supplied as multiple pieces. Made of 1/4" polished plate glass.