Roof Pitch Gauge - Gabled

Measure roof pitch instantly using your phone's built-in sensors or camera, then calculate the materials and rafter dimensions you need for any roofing project.

◆ TWO WAYS TO MEASURE

• Tilt Sensor : Place your phone on the roof surface for a direct reading. A precision sensor filter (gyroscope + accelerometer fusion) delivers stable, accurate results. • Camera Sight : Stand on the ground and aim at the roofline. On-screen guides help you align while sensors compute the angle automatically.

◆ BUILT-IN BUBBLE LEVEL

An animated circular spirit level with a color-coded stability indicator (amber → green → blue) helps you confirm your reading is locked and accurate.

◆ MATERIALS CALCULATOR

Enter your pitch and roof dimensions to get a complete materials list:

• Squares, bundles, and underlayment rolls • Starter strip, ridge cap, and drip edge • Nails and optional ice & water shield • 9 roofing materials : 3-Tab Shingles, Architectural Shingles, Standing Seam Metal, Corrugated Metal, Wood Shakes, Clay Tile, Concrete Tile, Slate, and Roll Roofing • Minimum pitch validation for each material type

◆ RAFTER CALCULATOR (Pro)

Compute everything you need for framing:

• Common rafter length, run, and rise • Overhang tail length • Plumb and seat cut angles • Framing square reference marks • Ridge height • Hip/valley rafters with compound angles

◆ REFERENCE TABLES

• Pitch Table : 47 entries from 0.5:12 to 24:12 with degrees, slope %, multiplier, and hip/valley factor. Tap any row to use it in the calculator. • Span Tables (Pro) : IRC R802.4 rafter spans for 2×4 through 2×12, SPF #2 and Douglas Fir #2, at 16" and 24" OC. • Unit Converter : Feet & inches ↔ decimal feet/meters, degrees ↔ pitch, slope % ↔ pitch, sq ft ↔ roofing squares.

◆ MEASUREMENT HISTORY

Save up to 50 measurements with timestamps, mode (tilt or camera), and custom labels. Copy or share your history as formatted text (Pro).

◆ FREE VS PRO

Free includes asphalt shingle calculations, 1 roof section, and 10 saved measurements. Upgrade to Pro for all 9 material types, unlimited roof sections, cost estimates, rafter calculator, span tables, history export, and customizable defaults.

◆ SUBSCRIPTION OPTIONS

• Monthly, Annual (with savings), or Lifetime • Free trial available where offered

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