Smacna Gutter Sizer

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

Smacna gutter sizer.

For additional information please see below. Resources aluminum series acm series column covers fastener series zinc series testing data aama pdf astm pdf gutter sizing sheet metal gages order literature 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. 15 m is a practical maximum gutter length to be served by a downspout. The smacna series gutter system is an exceptionally strong gutter product for industrial commercial type buildings.

We recommend resource library read more. This application runs the equations laid out in the smacna handbook. The sheet metal and air conditioning contractors national association smacna is an international trade association representing 3 500 contributing contractor firms. The downspout and gutter sizing calculator is located on the tools cad and apps page of the smacna website.

Calculations are based on level gutter capacity as experimentally determined by the national institute of standards and technology nist. Smacna downspout and gutter sizing calculator. Now architects engineers designers and contractors can easily and accurately size downspouts and gutters according to the specifications in smacna s architectural sheet metal manual 7th edition 2012. Saf smacna gutters are an extension of the saf industrial series gutters but with profile features contained in the sheet metal and air conditioning contractors national association smacna manual all styles are supplied in a standard 6 size and are.

It should be used to calculate required gutter size downspout size and downspout spacing for a given roof area.