Calculate Box Gutter Size

See photos below most residential gutters will measure approximately 5 inches across the top with the actual opening being approximately 4 5 inches.

Calculate box gutter size.

6 inch 7 960 square feet. Learn more how to storm water design for building sites. Then use the chart below to see what size gutter you need. Must have a constant slope between 1 40 and 1 200.

If a roof s various drainage areas call for different size gutters go for the biggest one k style. Roof area the locale s rainfall intensity and gutter capacity determine how many square inches of downspout are needed. Down pipe must be vertical from sump not to the side minimum sump length is 400mm. Measure your gutter across the top from the back where the gutter meets the home to the outer edge.

5 inch 5 520 square feet. Sides must be vertical. 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.

5 inch standard k style gutter shop 5 gutterbrush. Sizes the depth shown of the box gutter is the depth at the upstream end. Box gutters must be straight no bends. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.

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.