Roofing & exterior
Gutters and downspouts
Gutter size, downspouts sized to the roof they drain, hangers, corners, end caps, outlets, elbows and extensions — sectional for DIY or seamless by the foot.
0 of 14 answers are yours. The rest are typical defaults — check each one.
House size and roof shape
Outside wall to outside wall, along the ridge. Overhangs come next.
Outside wall to outside wall, the other way.
Overhang at the eaves and rakes
default
Measured level, from the wall to the edge of the roof.
Gable
Gutters on the two long sides
Hip
Gutters all the way around
Rise for every 12 across: a 6/12 roof rises 6 for every 12. Steeper roofs send water faster.
Roof area it drains, if you know it
default
From a roof report (a square is 100 sq ft). Leave 0 to work it out from the house.
1 story
Eaves about 10 ft up
Aluminum sections
10 ft and 16 ft
Seamless aluminum
Formed on site by a pro
By the rule
University of Illinois sizing
Heavy snow and ice?
Hangers every 24″ instead of 32″.