Metal roofing calculator
Panel cut list for every plane, plus trim, closures, sealant, screws or clips, underlayment and purlins.
Job
Roof size
Measure by
Roof style
Panels
Calculated — type to override
Edges & walls
Auto values come from the roof size — type over them with tape measurements.
Calculated — type to override
Calculated — type to override
Calculated — type to override
Calculated — type to override
Trim & fasteners
Underlayment & extras
Materials list
| Item | Qty | Unit price | Cost |
|---|---|---|---|
| Panels | |||
| Metal roof panels28 panels, 1 cut length — see the cut list | 479 LF | $ | — |
| Trim & flashing | |||
| Eave (drip) trim84 LF | 9 pcs (10.5 ft) | $ | — |
| Rake (gable) trim67 LF | 8 pcs (10.5 ft) | $ | — |
| Ridge cap42 LF | 5 pcs (10.5 ft) | $ | — |
| Closures & sealants | |||
| Inside closures (eave)3 ft each | 30 pcs | $ | — |
| Outside closures (ridge, hips, endwalls)84 LF of closure line | 30 pcs | $ | — |
| Butyl tape sealant168 LF | 4 rolls (45 ft) | $ | — |
| Tube sealant | 6 tubes | $ | — |
| Fasteners | |||
| Panel screws (#10 × 1-1/2 in. w/ washer)80 per square | 5 bags (250) | $ | — |
| Trim / stitch screws12 in. apart; two rows on caps | 1 bags (250) | $ | — |
| Underlayment & accessories | |||
| High-temp synthetic underlayment1,417 sq ft | 2 rolls | $ | — |
| Metal-roof pipe flashings | 2 ea | $ | — |
Panel cut list
| 17' 1" | 28 pcs |
How it works
- Panels run eave to ridge, one coverage width at a time. On hips each panel is cut from the longest point it covers, so the cut list is what you order.
- Trim is figured in 10 ft 6 in. sticks with 6 in. laps (10 ft net). Closures come one per panel at the eave, and both sides of every ridge and hip.
- Exposed-fastener screws default to 80 per square; standing seam uses clips at your spacing on every seam.
- Add your supplier's unit prices to any line for a cost estimate; tax and markup are optional.
How to measure
- Measure each plane's eave length and eave-to-ridge distance. For hip ends enter a ridge length of 0; for hip sides enter the (shorter) ridge.
- Add the panel overhang past the eave (usually 1–2 in.). Check the panel maker's minimum slope before ordering.
Estimates only. Coverage, sizes and waste vary by product and job — verify with the manufacturer's specs and your local building code before ordering.
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