Rain Gutter Design Calculator

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

Rain gutter design calculator.

Boasting considerable experience spanning over 25 years gutter masters company has operated on different buildings scenarios and designs with success at each turn. In response smacna s technical resources department has created a free downspout and gutter sizing calculator. Calculations are based on level gutter capacity as experimentally determined by the national institute of standards and technology nist. To limit the effects of thermal expansion in gutters 50 ft.

Get a quote for new gutters. The resulting estimated cost is not a quote for services. 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. One of the most frequently asked architectural questions smacna receives is on sizing gutters and downspouts.

The downspout and gutter sizing calculator is located on the tools cad and apps page of the smacna website. This calculator provides a rough estimate based on average material costs and labor costs both of which can vary by region and other factors. 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.