Gutter Downspout Dimensions

Use the downspout to redirect runoff and help prevent garden erosion and foundation damage.

Gutter downspout dimensions.

However too large a gutter downspout can look unattractive. You should have enough gutter downspouts to effectively handle the size of your entire gutter system. 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. 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.

But more could be. Gutter downspout sizes are 3 to 6 inches. More product details close. 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 should be constructed with conductor. The sizes available in this style are 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.

The larger a gutter downspout the more water it can drain quickly. Compatible with 2 in. Most downspouts are rectangular but they can also be round or square. Downspout sizing in sizing downspouts the following considerations apply.

The most common gutter sizes are 5 inches and 6 inches although 4 inches is available as well. For design purposes and aesthetics let s assume you have selected an 8 gutter. Multiply the number of downspouts by square footage of each. This durable downspout is maintenance free and has uv stabilizers to help prevent uv light degradation.

Size of the gutter drainage area. Increasing the pitch increases a gutter s handling capacity but the gutter may look askew over a long run. You should be able to. The standard is about inch per 10 feet.

Rainfall intensity is measured in inches per hour at a 5 minute interval. Metal or vinyl downspouts this versatile downspout has a lifetime guarantee. It also comes in sizes 2 3 and 3 4. 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.

How to figure the right downspout size. Practically speaking though a common gutter size is usually selected and downspout spacing is equal for most buildings.