Welcome to the best slider mirror door money can buy. Our Mir-Mel mirror door is 3/4" solid MDF (Medium Density Fiberboard) with the mirror laminated directly to the surface, creating a much safer pierce resistant mirror door. Most mirror doors are simply mesh backed mirror in a lightweight frame. This creates two issues; the mirror without a backing can become wavy and the mirror has no solid backing of any kind. The Impact Plus line of Bi-folds and siders are the safest mirror door on the market. The Impact Plus MDF door is the product line that launched our company. In 1957, when our doors with 3/4" solid MDF panels, our patented TruClose cam activated hinges and heavy duty hardware first hit the market it quickly became the top choice for Manhattan developers and architects. From Turner Construction when they built the Hofstra Dormitories on Long Island to HRH Construction when they built The Trump Towers, developers continue to purchase our Impact Plus Bi-fold and sliding doors. Today this product is bought by contractors, homeowners and developers alike.