Paint Grip Steel Rectangular Downspouts

Rectangular Paint Grip Steel Downspouts are the standard for Paint Grip Steel K Style gutter systems. 2x3 is typical for a 5" K Style gutter system, however 3x4 can also be used and is considered a better alternative due to the larger amount of rainfall they can drain.  3x4 are typical for a 6" K Style gutter system and 4x5 for larger roof areas and commercial structures.

Bonderized "Paint Grip" Steel is galvanized steel that is processed through a phosphate bath. This provides a corrosion inhibiting, crystalline zinc phosphate, micro-porous surface that promotes adhesion of top coatings.

Specifications:

2x3 = 26 Gauge, 10 ft. lengths

3x4 = 26 Gauge, 10 ft. lengths

4x5 = 26 Gauge, 10 ft. lengths

Downspout diameters are sized according to the roof area they drain. The following is the general rule used in the industry:

2x3 = 600 sq. ft. of roof

3x4 = 1200 sq. ft. of roof

4x5 = 2000 sq. ft. of roof