Construction
Gutter & Downspout Calculator
Roof drainage area sized to gutter LF plus number of downspouts.
Gutter LF needed
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- Downspouts
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- End caps
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- Hangers (32 in oc)
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FAQ
One downspout per how much roof? +
About 1 downspout per 600 sq ft of roof drainage, minimum 2 per gutter run.
Seamless vs sectional? +
Seamless gutters leak less and look cleaner. Sectional is DIY-friendly.