Rain Gutter Width

If a roof s various drainage areas call for different size gutters go for the biggest one k style.

Rain gutter width.

Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. A k style gutter in the same inch width can handle twice as much water as a half round gutter. Downspout sizes must not exceed the bottom width of the gutter.

6 inch 7 960 square feet. See photos below most residential gutters will measure approximately 5 inches across the top with the actual opening being approximately 4 5 inches. Then use the information below to see what size gutter you need. Downspouts also come in different sizes such as 2 3 inches and 3 4 inches in size.

They come in 5 inch to 6 inch widths. 5 inch 5 520 square feet. 6 inch 7 960 square feet. Then use the chart below to see what size gutter you need.

Roof slope rainwater must not overrun the front edge of the gutter. Most times these style gutters are installed with rectangular downspouts. K style gutters are the most common option and they provide optimum drainage for the majority of homes in most of the u s. Measure your gutter across the top from the back where the gutter meets the home to the outer edge.

If a roof s various drainage areas call for different size gutters go for the biggest one k style. Gutters come in different sizes. They can be 4 5 or 6 inches.