Calculate Box Gutter Size

Northclad gutter size requirement calculator this calculator uses current data to calculate the required size of gutter as well as number and size of downspouts based on your input.

Calculate box gutter size.

We recommend using this calculator as a basic tool to begin determining the requirements for your drainage system however all information should be verified by. 5 inch standard k style gutter shop 5 gutterbrush. 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.

6 inch 7 960 square feet. Measure your gutter across the top from the back where the gutter meets the home to the outer edge. Sizes the depth shown of the box gutter is the depth at the upstream end. 5 inch 5 520 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. Doubling the number of downspouts halves the required capacity for each. Learn more how to storm water design for building sites. Downpipe eaves gutter long straight eaves gutters box gutter to rain water head box gutter vertical faces box gutter side o flow box gutter vertical o flow storm water pipe size storm water network overland flow path spitter upstream end custom rain water head.

Size downspouts to fit the gutter. A square inch of downspout can drain 1 200 square feet of roof during a rain with an intensity of one inch per hour. Box gutters must be straight no bends. Must have a constant slope between 1 40 and 1 200.

Down pipe must be vertical from sump not to the side minimum sump length is 400mm.