Standard Gutter And Downspout Sizes

The standard is about inch per 10 feet.

Standard gutter and downspout sizes.

Available sizes are 2 3 and 3 4. You should have enough gutter downspouts to effectively handle the size of your entire gutter system. The point of intersection occurs between the oblique line representing gutter widths of 5 and 6 in 127 and 152 mm. The required width of gutter is therefore 6 in 152 mm and its depth need be only 4 5 in 114 mm in.

The above recommendations assume that you have properly sized downspouts every 40 feet. They come in various colors and sizes of 3 4 5 and 6. This type of down spout is considered the standard downspout style in households and is used with a 5 k style guttering system. As with gutters a downspout s capacity must match or exceed the expected runoff.

This is the standard downspout style used on homes with the 5 k style gutter system. Increasing the pitch increases a gutter s handling capacity but the gutter may look askew over a long run. However too large a gutter downspout can look unattractive. Gutter downspout sizes are 3 to 6 inches.

Increasing the pitch increases a gutter s handling capacity but the gutter may look askew over a long run. Most downspouts are rectangular but they can also be round or square. Round downspouts are typically used with half round gutters. As with gutters a downspout s capacity must match or exceed the expected runoff.

The above recommendations assume that you have properly sized downspouts every 40 feet. In general there are three different types of downspouts. The larger a gutter downspout the more water it can drain quickly.