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Calcimator

Standing Seam Metal Calculator

Panel count, clips, and trim from roof measurements.

Inputs

%

Results

Actual Roof Area (sqft)

1,950

Total Panels60
Panel Length (ft)24.9
Concealed Clips840
Ridge Cap (pcs)4
Eave Trim (pcs)8
Rake Trim (pcs)6
Underlayment Rolls3
Est. Material Cost ($)$8,543.00
How to Use This Calculator
  1. Enter roof footprint (sqft), pitch, ridge length (ft), eave length (ft), and rake length (ft).
  2. Review calculated roof area, total panels, panel length, clips, and trim quantities.
  3. Include ridge cap, eave trim, rake trim, and valley flashing in your material order.
  4. Standing seam systems are installed floating -- do not use exposed fasteners through the panel face.

How the result changes with Roof Footprint (sqft)

Roof Footprint (sqft)Actual Roof Area (sqft)
10,09010,931
35,06537,987
65,03570,455
90,01097,511

What each input means

Roof Footprint (sqft)
Horizontal projected area of the roof.
Pitch (rise per 12 in)
Roof slope. Standing seam works on 3:12 and steeper.
Ridge Length (ft)
Length of the roof ridge in feet.
Total Eave Length (ft)
Combined eave length on all sides.
Total Rake Length (ft)
Combined gable/rake edge length.
Panel Width (inches)
Coverage width of each panel. Common: 12", 16", 18".
Waste Factor (%)
Extra for cuts and waste. 5% typical for simple gable roofs.

What each result means

Actual Roof Area (sqft)
True roof surface area accounting for pitch.
Total Panels
Number of standing seam panels (both sides of ridge).
Panel Length (ft)
Length of each panel from eave to ridge.
Concealed Clips
Number of concealed mounting clips (24" OC).
Ridge Cap (pcs)
10 ft ridge cap pieces.
Eave Trim (pcs)
10 ft eave/drip edge trim pieces.
Rake Trim (pcs)
10 ft gable/rake trim pieces.
Underlayment Rolls
Synthetic underlayment rolls (~1000 sqft each).
Est. Material Cost ($)
Approximate material cost (labor not included).

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Roof Footprint (sqft) = 1800, Pitch (rise per 12 in) = 5, Ridge Length (ft) = 40, Total Eave Length (ft) = 80 = 7 input(s) provided
  2. Calculate Actual Roof Area
    Actual Roof Area = footprintSqft * pitchFactor
    1950 = 1950
  3. Calculate Total Panels
    Total Panels
    60 = 60
  4. Calculate Panel Length
    Panel Length
    24.9 = 24.9

Engine last updated . Checked against 1 independently-derived test — how we verify calculators.

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