Grace Solar GS-DWR Rails deliver rock-solid support for solar arrays worldwide. Our 40x40mm aerospace-grade AL6005-T5 aluminum rails feature corrosion-resistant anodized finish and tool-less clamp installation. With 48GW+ global installations across 100+ countries, these UL/TUV/CE-certified rails enable rapid deployment on all roof types. Custom lengths ensure perfect fit. Experience the "Do It Right First Time" engineering difference...