Rain Gutter Design Calculator

Downspout sizes must not exceed the bottom width of the gutter.

Rain gutter design calculator.

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. Overflow provisions rain shadow roof slopes how to find rainfall intensity how to calculate the area of any catchment how to find the hydraulic grade of charged pipes how to design box gutters using the code how to use the extra features of the dp calculator box gutters allowable width slope length other plumbing codes how to exceed the. Moreover if you have a complex roof the cost will very likely be higher. The resulting estimated cost is not a quote for services.

In response smacna s technical resources department has created a free downspout and gutter sizing calculator. One of the most frequently asked architectural questions smacna receives is on sizing gutters and downspouts. This calculator provides a rough estimate based on average material costs and labor costs both of which can vary by region and other factors. 15 m is a practical maximum gutter length to be served by a downspout.

The downspout and gutter sizing calculator is located on the tools cad and apps page of the smacna website. To limit the effects of thermal expansion in gutters 50 ft. Get a quote for new gutters.