James Hardie 0.25-in x 36-in x 60-in HardieBacker Fiber Cement Backer BoardCement backerboard provides a solid foundation for floors and countertops in bathrooms, kitchens, laundry rooms and more Moisture resistant cement board engineered for use in wet areas MoldBlock Technology protects the board against damage from mold Score and Snap easily cuts indoors using a scoring knife for less dust and mess Use under a variety of flooring or countertop surfaces including tile, vinyl, wood, granite and other stones 0. 25 in thick x