Dachschindel-Rechner

Zuletzt aktualisiert: 2026-06-23

Verwenden Sie den Dachschindel-Rechner für genaue Ergebnisse. Geben Sie Ihre Werte ein.
Eingaben
Ergebnis
Geben Sie die Werte ein und klicken Sie auf Berechnen
Common Sizes — Click to Fill
Länge des tejado (m) Breite des tejado (m) Pendiente des tejado Tejas durch paquete (pcs)
8 m 5 m 4 33 pcs
10 m 7 m 4 33 pcs
12 m 8 m 6 33 pcs
15 m 10 m 6 33 pcs
20 m 12 m 8 33 pcs
Ähnliche Rechner
Trockenbau-Rechner (US-Einheiten) Dämmmatten-Rechner Betontreppen-Rechner Betonrechner (unbewehrt)

Was ist der Roofing Shingle Calculator?

Ordering the wrong amount of roofing shingles is an expensive mistake — shingles are sold in bundles and squares, and prices vary widely. Too few and the job stops mid-roof; too many and you're paying for materials you'll never use. The Roofing Shingle Calculator accounts for your roof's actual pitch using the pitch factor formula, so you get an accurate bundle count for sloped roofs of any angle.

You may also find the Drywall Calculator, Insulation Batt Calculator, and Concrete Steps Calculator useful.

Wer nutzt diesen Rechner?

This tool is used by homeowners re-roofing a house, roofers estimating material costs, and contractors preparing bids.

Verwendung the Roofing Shingle Calculator

  1. Geben Sie Roof length ein.
  2. Geben Sie Roof width ein.
  3. Geben Sie Roof pitch ein.
  4. Geben Sie Shingles per bundle ein.
  5. Klicken Sie auf Berechnen, um die Ergebnisse zu sehen.

Formel

The calculator uses the following formula:

Pitch factor = sqrt(1 + (pitch/12)²); Roof area = L × W × pitch_factor; Bundles = ceil(area ÷ 9.29 × 3)

Rechenbeispiel

A roof that is 12 m long × 8 m wide with a 6/12 pitch has a pitch factor of 1.118, giving an actual area of 107 m². That requires approximately 35 bundles (3 bundles per square, where 1 square = 9.29 m²).

Schritt-für-Schritt-Berechnung

  1. Flat footprint: 12 m × 8 m = 96 m²
  2. Pitch factor for 4/12 pitch: sqrt(1 + (4/12)²) = 1.054
  3. Actual roof area: 96 × 1.054 = 101.2 m²
  4. Roofing squares (1 square = 9.29 m²): 101.2 ÷ 9.29 = 10.9 squares
  5. Bundles (3 per square + 10% waste): ceil(10.9 × 3 × 1.1) = 36 bundles

Häufige Fehler vermeiden

  • Using the floor footprint area instead of actual roof surface area
  • Forgetting to account for roof pitch when ordering materials
  • Not adding 10-15% for waste, valleys, and hip cuts
Pro Tip: Always order 10–15% extra for waste, ridge caps, hips, and valleys. Shingles from the same production run have matching colour — mixing runs can cause visible colour differences.

Häufig gestellte Fragen

What is a roofing square?
A roofing square equals 100 square feet (about 9.29 m²). Most shingles come 3 bundles per square, though premium architectural shingles may need 4 bundles per square.

How does roof pitch affect material quantities?
Steeper roofs have more actual surface area than their footprint suggests. A 12/12 pitch (45°) requires 41% more shingles than a flat area of the same floor dimensions.

What is the pitch factor and how is it calculated?
Pitch factor = √(1 + (pitch/12)²). For a 6/12 pitch: √(1 + 0.25) = 1.118. Multiply your floor area by this factor to get actual roof surface area.

Do I need to include the overhang in my measurements?
Yes — measure the full roof surface including any eave overhang, not just the building footprint. Overhangs typically add 15–30 cm per side.

How long do asphalt shingles last?
Standard 3-tab shingles last 20–25 years. Architectural (dimensional) shingles last 30–50 years. Metal roofing can exceed 50 years. Lifespan depends on climate, ventilation, and installation quality.

Geschrieben und geprüft vom CalcToWork-Redaktionsteam. Letzte Aktualisierung: 2026-06-23.

calcto.work — Calculated on 2026-06-23