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Roof estimate calculator

Roof inputs appear in the calculator URL. Contact information is requested only when you choose to send your estimate. How we handle your information.

Plan a roof replacement budget in Northwest Oregon or Southwest Washington. Review your preliminary price before sending your project for a written estimate.

1. Roof details

Roof surface area (square feet)

Do not enter total living-space square footage. Use the actual sloped roof surface area from a roof measurement report or known roof measurements.

For a two-story home with equally sized floors, dividing living area by two can roughly estimate the building footprint—not the roof surface area. For example, 2,500 sq ft of living space may mean a footprint near 1,250 sq ft. Roof slope, overhangs, garages and additions can increase the roof area, so do not enter that footprint as a verified roof measurement.

For three or more stories, do not use the divide-by-two shortcut. If you are unsure, contact us for measurement help. Do not climb onto your roof to measure.

Do not add waste yourself. The calculator already includes a 10% material-waste allowance.

Pitch: rise per 12 inches

Enter 6 for 6/12, 8 for 8/12. Supports 4/12–12/12. Mixed pitches or other slopes need individual review.

Number of stories

Collected for access review. No automatic story surcharge is included.

Existing roofing layers

Automatic pricing covers one existing layer only.

2. Review your estimate

Your preliminary price appears here after you enter the roof details.

Call 503-308-3267

Or email contact@veritybuildersllc.com.