Standard Gutter Downspout Sizes

The standard is about inch per 10 feet.

Standard gutter downspout sizes.

It is easy to see that you can vary gutter size downspout size and downspout spacing to properly size a gutter downspout system. Adding additional sections of gutter reduces the length of each section and will reduce the gutter size. Increase the pitch of the gutter. The size of the downspout should be constant through out its length.

Use the downspout to redirect runoff and help prevent garden erosion and foundation damage. When determining the size of a home s gutter system a homeowner should consider the area s rainfall. In sizing downspouts the following considerations apply. As with gutters a downspout s capacity must match or exceed the expected runoff.

Metal or vinyl downspouts this versatile downspout has a lifetime guarantee. Gutter downspout sizes are 3 to 6 inches. The sizes available in this style are 3 4 5 and 6. They are made from aluminum vinyl zinc copper or steel.

Compatible with 2 in. The larger a gutter downspout the more water it can drain quickly. Increasing the pitch increases a gutter s handling capacity but the gutter may look askew over a long run. Gutters are typically round shape or k style but other designs are available.

It also comes in sizes 2 3 and. The above recommendations assume that you have properly sized downspouts every 40 feet. Downspouts should be constructed with conductor. 5 inches and 6 inches gutters are the most common sizes installed for.

Also the gutter width in relation to height may also be adjusted. Downspouts are commonly 2 x 3 inches and 3 x 4 inches in size or 3 or 4 inches in diameter. However too large a gutter downspout can look unattractive. The above recommendations assume that you have properly sized downspouts every 40 feet.

In this example your maximum spacing of downspouts should be 40. The gutter and downspout size requirement depends upon the number of sections and length of the gutter sections as well as the number of downspouts. Round downspouts come in various sizes and colors and mostly used with half round gutters. This type of down spout is considered the standard downspout style in households and is used with a 5 k style guttering system.

Increasing the pitch increases a gutter s handling capacity but the gutter may look askew over a long run. Downspouts of less than 7 00 sq in 4515 sq mm cross section should not be used except for small areas such as porches and canopies. Most downspouts are rectangular but they can also be round or square. Gutters and gutter downspout sizes.

Continue reading to learn more about what to consider when figuring the right gutter downspout sizes. The standard is about inch per 10 feet.