Steel-Kits offers steel gutters and downspouts for each of our home models. The package includes 4-inch steel gutter for the eaves, and a 4-inch steel downspout for each corner. Both are made of 26-gauge (.0185 mil) 80,000 PSI steel sheet with a Kynar paint system over a Galvalume substrate. The Kynar paint system, which carries a twenty-year manufacturer's warranty, is the finest steel finish available and will will perform for decades without fading, peeling, or cracking. You may choose gutter and downspout colors separately.