The Stile Board System features single slope panels made of extruded polystyrene (XPS) tile backer board. These panels are integrated with a single slope 1:80 fall gradient to allow sufficient water drainage when integrating with linear drains in the design. The single slope panels come in various sizes to accommodate versatility when dealing with different drain locations. Single slope panels can create a single slope towards a linear drain positioned at the wall or a 2-way slope with falls on both sides of the linear drain, ensuring efficient water management in your designs.