HardieBacker® 1/2-inch cement board is a robust, moisture-resistant tile underlayment engineered for demanding floor and wall applications. Constructed from cement and glass mesh, this 3' × 5' panel provides a stable, rigid substrate that significantly reduces the risk of tile and grout cracking. It resists moisture, rot, and deterioration caused by water exposure, making it ideal for bathrooms, kitchens, laundry rooms, and wet areas. The 1/2" thickness delivers increased strength and load-bearing capacity over thinner boards, while still being easy to cut, handle, and install. Compatible with ceramic and porcelain tile, natural stone, and other finishes, HardieBacker® helps create long-lasting, durable tiled surfaces.