Gutter & Downspout Calculator
Estimate downspouts from gutter length and roof drainage area.
Drainage
Plan area draining to this gutter
Downspouts
Downspouts4
Gutter120 lf
By Length (1/35 lf)4
By Area (1/800 ft²)3
Recommendation is the greater of the length- and area-based counts. Size up in heavy-rain regions.
Run your whole job on the same numbers
These NORDIX tools are a taste of the full platform — bid pipeline, estimating, and job costing that carry your numbers from the first bid to the final invoice.
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