Gutter Downspout Dimensions

One downspout is typically enough for every 20 25 feet of guttering.

Gutter downspout dimensions.

Most downspouts are rectangular but they can also be round or square. However too large a gutter downspout can look unattractive. Downspout sizing in sizing downspouts the following considerations apply. Gutter downspout sizes are 3 to 6 inches.

The size of the downspout should be constant through out its length. Downspouts are commonly 2 x 3 inches and 3 x 4 inches in size or 3 or 4 inches in diameter. The most common gutter sizes are 5 inches and 6 inches although 4 inches is available as well. Round downspouts come in various sizes and colors and mostly used with half round gutters.

You should be able to. The standard is about inch per 10 feet. Rectangular downspouts move slightly less water at 600 square feet for 2 by 3 inch or 1 200 square feet for a 3 by 4 inch downspout. It also comes in sizes 2 3 and 3 4.

Multiply the number of downspouts by square footage of each. 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. More product details close. But more could be.

Compatible with 2 in. Use the downspout to redirect runoff and help prevent garden erosion and foundation damage. You should have enough gutter downspouts to effectively handle the size of your entire gutter system. Metal or vinyl downspouts this versatile downspout has a lifetime guarantee.

Continuing with our example in the last step we know our gutter downspout system may be subject to as much as 1 880 gallons per minute. The larger a gutter downspout the more water it can drain quickly. This durable downspout is maintenance free and has uv stabilizers to help prevent uv light degradation. Increasing the pitch increases a gutter s handling capacity but the gutter may look askew over a long run.

How to figure the right downspout size. Round 3 inches 706 square feet 4 inches 1 255 square feet. This type of down spout is considered the standard downspout style in households and is used with a 5 k style guttering system. Size of the gutter drainage area.

The sizes available in this style are 3 4 5 and 6. For design purposes and aesthetics let s assume you have selected an 8 gutter.