Metal Roofing Calculator
Panel count, cut length, trim and fasteners for exposed-fastener or standing seam panels.
Turn these numbers into a build plan.
- 30 panels
- 163 in length
- $3,362 est. cost
Cut list: Metal Roofing Calculator
- Roof area1073 sq ft (10.7 squares)
- Panels30
- Panel cut length163" (13.58 ft)
- Ridge / eave / rake trim, 10.5 ft4 / 8 / 6
- Screws859
- Panel cost$3,362
- [ ] Metal panels at 163"30
- [ ] Metal roofing screws859
- [ ] Metal panels, 163 in
- [ ] Ridge cap, 10.5 ft
- [ ] Eave trim, 10.5 ft
- [ ] Rake trim, 10.5 ft
- [ ] Synthetic underlayment
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Metal roof, 10.7 squares
30 panels cut to 163 in with ridge, eave and rake trim for a 1,073 sq ft roof.
- Materials
- $3,362
- Time
- 1 weekend
- Level
- Advanced
- 1
Confirm permit and panel limits
Check permit needs with your building department and the panel's minimum pitch.
- Permit question answered
- Minimum pitch checked
- 2
Prepare the deck
Repair the deck and lay synthetic underlayment.
- Deck solid
- Underlayment on
- 3
Install eave trim
Fasten eave trim straight and level to a chalk line.
- Trim straight
- Panels
- 30
- Length
- 163 in
- Est. cost
- $3,362
6 steps · 5 tools · 6 materials
3 more steps, the full tool list and a shopping list you can check off as you go.
Your plan is 60% built. Save it.
3/5Metal roof, 10.7 squares
Finished in 1 weekend · $3,362 DIY
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How to calculate metal roofing panels
Panels run from eave to ridge, so count them across the eave and cut them to the slope length.
- Measure the eave. Measure the eave length of each roof plane.
- Count panels. Divide the eave in inches by the panel's coverage width and round up.
- Find the length. Multiply the run by the pitch factor and add 1-1/2 in of overhang.
- Add trim. Divide ridge, eave and rake lengths by a 10 ft usable stick.
- Count fasteners. About 80 screws per square for exposed fastener, or one clip every 2 ft along each seam.
Common panel types
| Panel | Coverage | Typical minimum pitch |
|---|---|---|
| Exposed fastener, 36" coverage | 36 in | 3:12 |
| PBR, 36" coverage | 36 in | 1:12 |
| Standing seam, 16" coverage | 16 in | 2:12 |
| Standing seam, 12" coverage | 12 in | 2:12 |
Compare against shingles with the roofing calculator, and check snow load in cold climates.
Frequently asked questions
How many metal panels do I need?
What is the minimum pitch for a metal roof?
How many screws per square?
Can metal go over shingles?
How long should panels overhang the eave?
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