Roof Shingles Calculator
Flat Area =
Estimates the number of three-tab asphalt roof shingles needed. Includes starter shingles and caps for ridge and hips.
Red arrows point to eaves, green lines represent ridge, blue lines represent hip.
-Rise: Vertical Rise of the roof in inches relative to each 12 inches of horizontal run.
-Flat Area: Total area (including overhang) to be covered (the flat area).
-Ridge: Linear length of all ridge board added together.
-Hips: Linear length of the all hips added together.
-Eaves: Linear length of the eaves added together.
-#Squares: Total number of squares.
-Length: Length of the shingle.
-Exposure: Length of exposure (the amount left uncovered).
-#Shingles: Total number of shingles.
Estimates the number of shingles needed for the following diagram. NOTE: Slope of roof is 6:12, exposure is 5in on a 3ft long shingle.
-Flat Area: 2415.00ft²
27 squares and 2703.11 shingles are needed.