The number of screws needed for installing Duramax PVC Panels depends on the size of the area being covered and the panel configuration. As a general guideline, use approximately 1 screw every 8 to 12 inches along the edges and seams of each panel, ensuring they are securely fastened to the wall or ceiling. For larger areas, you may need to adjust based on panel size and wall structure. See our installation guide for more information.