Rain Gutter Sizes

As a general rule egutter recommends for roof areas that exceed 2800 square feet a 6 k style size with a 3 x 4 downspout size would be appropriate.

Rain gutter sizes.

5 inch standard k style gutter shop 5 gutterbrush. Half round 5 inch 2 500 square feet 6 inch 3 840 square feet. Measure your gutter across the top from the back where the gutter meets the home to the outer edge. K style sizes will typically range from 5 to 6.

Gutter downspout sizes are 3 to 6 inches. 6 inch 7 960 square feet. However too large a gutter downspout can look unattractive. Aluminum is the most popular material for rain gutters whether seamed or seamless.

If a roof s various drainage areas call for different size gutters go for the biggest one k style. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. See photos below most residential gutters will measure approximately 5 inches across the top with the actual opening being approximately 4 5 inches. 5 inch 5 520 square feet.

You should have enough gutter downspouts to effectively handle the size of your entire gutter system. The larger a gutter downspout the more water it can drain quickly. 7 and greater are appropriate for churches and larger commercial buildings.