The standard is about inch per 10 feet.
How many feet of gutters on normal house.
5 inch 2 500 square feet.
Rectangular 2 by 3 inches 600 square feet 3 by 4 inches 1 200 square feet.
6 inch 3 840 square feet.
Installing new gutters costs 10 12 per linear foot for a basic project over 50 feet.
For rainy climates where gutters will handle a larger amount of water for long periods they should have a maximum distance of 18 inches apart between them.
Adding a 2 by 3 rectangular downspout for instance boosts your gutter s capacity by 600 square feet of drainage area.
As with gutters a downspout s capacity must match or exceed the expected runoff.
If you have a high pitched roof multiple storeys or a complex architectural gutter design your installation cost will be 15 25 depending on the increased scope of work.
Use the chart below to figure out how many extra downspouts you need.
Hangingdownspouts and gutters rain gutters review.
When you are considering what kind of gutters to get keep in mind that different gutter shapes have a significant impact on the capacity of the gutter.
Calculate linear feet for gutters by adding up all of the measured lengths.
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If you live in a warm place with sporadic rain you can hang gutter hangers close to the middle of the gutter with a spacing of no more than 36 inches or three feet apart from the center.