Gutter sections & materials calculator
Turn your linear feet into stock sections, hangers, end caps, corners and elbows.
Calculator
110 linear feet comes to 11 ten-foot sections and 55 hangers, plus 6 end caps, 4 corners and 9 elbows. Seamless gutter has no 10-ft joints (only the run count) — sections apply to sectional gutter; confirm hanger spacing against local code (closer in heavy-snow regions).
Once you know the linear feet, the parts list falls out of it. This tool converts your run length into the pieces you actually put in the cart: stock sections, hangers, end caps, corners and downspout elbows.
It works for sectional gutter, which comes in 10-ft lengths that clip together. Seamless gutter is rolled on site to the full run, so it has no mid-run sections — only the run count matters. The hangers, caps, corners and elbows are the same either way.
Formula
sections = ceil(linear_feet ÷ 10) (sectional stock)hangers = ceil(linear_feet ÷ (hanger_spacing_in ÷ 12))end_caps = 2 × number_of_runselbows = 3 × downspouts (2 at the top + 1 at the bottom)
Corners you count off the plan — each inside or outside turn is one corner piece. The ceil rounds sections and hangers up to whole units.
Worked example
110 linear feet, 3 runs, hangers every 24 in, 4 corners, 3 downspouts:
- Sections: ceil(110 ÷ 10) = 11 ten-foot sections
- Hangers: ceil(110 ÷ 2) = 55 hangers
- End caps: 2 × 3 = 6 end caps
- Corners: 4
- Elbows: 3 × 3 = 9 elbows
Seamless? Skip the 11 sections — you order 3 continuous runs cut to length — but you still need the 55 hangers, 6 caps, 4 corners and 9 elbows.
Fasteners and joints
- Hanger spacing. 24 in is the common default. Go closer — 18 in or less — in heavy-snow or ice-dam country so the gutter carries the load.
- End caps come in pairs. Each straight run needs a cap at each open end, so two per run — fewer where a run terminates into a corner.
- Slip joints leak first. Every sectional joint is a future leak point; seal them well, or go seamless. See seamless vs sectional.
- Elbows. Plan two at the top of each downspout to reach back to the wall, plus one at the bottom. Add more for offsets around a soffit — the elbows & offsets calculator handles that.
Reference table
| Item | Rule |
|---|---|
| Stock length | 10 ft (sectional) |
| Hanger spacing | 24–36 in (24 in typical) |
| End caps | 2 per run |
| Elbows | 3 per downspout |
Labeled planning typicals — see hanger & fastener spacing.