Gutter Downspout Dimensions

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

Gutter downspout dimensions.

The larger a gutter downspout the more water it can drain quickly. Multiply the number of downspouts by square footage of each. Increasing the pitch increases a gutter s handling capacity but the gutter may look askew over a long run. Gutter downspout sizes are 3 to 6 inches.

Round 3 inches 706 square feet 4 inches 1 255 square feet. Round downspouts come in various sizes and colors and mostly used with half round gutters. Downspouts are commonly 2 x 3 inches and 3 x 4 inches in size or 3 or 4 inches in diameter. This durable downspout is maintenance free and has uv stabilizers to help prevent uv light degradation.

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. The most common gutter sizes are 5 inches and 6 inches although 4 inches is available as well. Use the downspout to redirect runoff and help prevent garden erosion and foundation damage. Downspouts should be constructed with conductor.

Size of the gutter drainage area. The standard is about inch per 10 feet. Compatible with 2 in. Practically speaking though a common gutter size is usually selected and downspout spacing is equal for most buildings.

The size of the downspout should be constant through out its length. However too large a gutter downspout can look unattractive. Most downspouts are rectangular but they can also be round or square. For design purposes and aesthetics let s assume you have selected an 8 gutter.

You should be able to. You should have enough gutter downspouts to effectively handle the size of your entire gutter system. Rainfall intensity is measured in inches per hour at a 5 minute interval. How to figure the right downspout size.

But more could be. More product details close. It also comes in sizes 2 3 and 3 4. The sizes available in this style are 3 4 5 and 6.

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.