Decks, Fences & Roofs Calculators
Estimate materials for decks, fences, roofs and other exterior building projects before preparing a shopping list. Deck and fence tools help with boards and layout, while roofing calculators cover surface area, pitch, shingles, metal sheets and related parts. Use the rafter or ramp tools when you need a geometric measurement rather than a material quantity. Check the units and any overlap, spacing or waste settings on each page. Roof shape, cutting patterns and local installation requirements can change what you need. Treat the results as planning estimates, and confirm structural sizes and fastening details against your project drawings and product instructions.
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- Deck Board CalculatorCount parallel decking rows and stock pieces for a rectangular deck with boards running along its length.Open calculator →
- Deck CalculatorDeck boards, joists and screws for a rectangular wooden or composite deck.Open calculator →
- Fence CalculatorPosts, panels or sections, rails and post concrete for a straight fence run.Open calculator →
- Gutter CalculatorGutter length, sections, downspouts, hangers and the fall each run needs.Open calculator →
- Metal Roofing CalculatorNumber and length of metal roof panels from their cover width, plus screws and ridge cap.Open calculator →
- Rafter Length CalculatorEstimate the sloping line of a common rafter on a symmetric gable roof, including a horizontal eave projection.Open calculator →
- Ramp CalculatorLength of a wheelchair or access ramp from the rise and slope, with landings and surface area.Open calculator →
- Roof Pitch CalculatorRoof pitch as x/12, degrees and percent, with rafter length and roof area factor.Open calculator →
- Roof Replacement Cost CalculatorEnter the actual sloped roof area and quoted replacement rate.Open calculator →
- Roof Square CalculatorConvert a simple roof's horizontal projected rectangle and uniform pitch into sloping area and roofing squares.Open calculator →
- Roofing CalculatorReal roof area from the footprint and pitch, shingle squares, bundles and underlayment.Open calculator →
- Shingle CalculatorCount field bundles, ridge-cap packages and starter packages using measured surface area and product label coverage.Open calculator →
- Siding CalculatorSquares of vinyl or lap siding for a house, plus starter strip, J-channel and corner posts.Open calculator →
- Soffit and Fascia CalculatorSoffit panels, fascia boards and eave intake vent area for a roof overhang.Open calculator →