Typical Residential Gutter Size

Half round and k style gutters are the two most common gutter types found on residential homes.

Typical residential gutter size.

It also comes in sizes 2 3 and. The type of gutters you buy and the size of the gutter pieces you buy should be able to handle all the rain your home gets in a year. Then use the information below to see what size gutter you need. Most residential gutter systems use 5 gutters or 6 gutters.

A standard 5 inch k style gutter can handle annual rainfall for a majority of houses in most of the u s. The downspout and gutter sizing calculator is located on the tools cad and apps page of the smacna website. A larger size gutter system will generally be more expensive. Downspout sizes must not exceed the bottom width of the gutter.

Each gutter style comes in two sizes and each has the capacity to. Now architects engineers designers and contractors can easily and accurately size downspouts and gutters according to the specifications in smacna s architectural sheet metal manual 7th edition 2012. Outlet sizing and spacing your gutter system will perform its best when a proper outlet size is chosen to drain a given roof area. 5 inch 5 520 square feet.

Downspouts also come in different sizes such as 2 3 inches and 3 4 inches in size. Round downspouts come in various sizes and colors and mostly used with half round gutters. If a roof s various drainage areas call for different size gutters go for the biggest one k style. They can be 4 5 or 6 inches.

This type of down spout is considered the standard downspout style in households and is used with a 5 k style guttering system. The definitive guide to gutter sizing five inch k style gutters or 6 inch half rounds the most common residential sizes are able to handle the rainfall on most houses in most parts of the country. But houses with big steep roofs or those located in climates prone to heavy downpours may need wider gutters and extra downspouts to keep. The size of the gutter should never be selected for the amount of water it can hold gutter size refers to the opening at the top of the gutters and not to the depth of the gutter channel.

The sizes available in this style are 3 4 5 and 6. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. When you are completing a gutter replacement the first point to note is that gutters come in different sizes. How to size gutters downspouts.