This polished aluminum diamond plate sheet measures 48 inches by 120 inches (4 feet by 10 feet) with a thickness of .025 inches (1/40th inch). The distinctive raised diamond pattern provides excellent slip resistance and durability, making it ideal for a variety of applications. This versatile sheet is commonly used as rock guard protection, trailer flooring and walls, RV exterior panels, toolbox covers, and general protective surfacing. The polished finish offers an attractive, reflective appearance while maintaining the functional benefits of the diamond plate texture. Aluminum construction ensures lightweight handling combined with corrosion resistance and long-lasting performance. The large 4 by 10 foot size provides substantial coverage for projects requiring protective or decorative metal sheeting. Whether you're outfitting a trailer, protecting vehicle surfaces, or completing a custom fabrication project, this aluminum diamond plate sheet delivers both form and function.