Residential Gutter Sizes

Half round 5 inch 2 500 square feet 6 inch 3 840 square feet.

Residential gutter sizes.

A k style gutter in the same inch width can handle twice as much water as a half round gutter. Most times these style gutters are installed with rectangular downspouts. They come in 5 inch to 6 inch widths. Half round gutters move less water and allow for 2 500 square feet.

Gutter size refers to the opening at the top of the gutters and not to the depth of the gutter channel. Regardless of the gutter profile the shape of the gutter a gutter is measured from the back to the front at the widest part. Measure your gutter across the top from the back where the gutter meets the home to the outer edge. See photos below most residential gutters will measure approximately 5 inches across the top with the actual opening being approximately 4 5 inches.

A larger size gutter system will generally be more expensive. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. 6 inch 7 960 square feet. 5 inch 5 520 square feet.

Then use the chart below to see what size gutter you need. If a roof s various drainage areas call for different size gutters go for the biggest one k style. Most residential gutter systems use 5 gutters or 6 gutters.