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Building & roofing calculators

Stairs, roofs, rafters, decks, lumber and tile.

• Board Foot CalculatorBoard feet for hardwood and rough lumber, the unit it is priced by.
• Stair CalculatorNumber of steps, riser height, tread run and stringer length from the total rise.
• Roof Pitch CalculatorRoof pitch, angle and slope multiplier from rise and run.
• Roofing CalculatorRoof area, squares and shingle bundles from the house footprint and pitch.
• Rafter Length CalculatorCommon rafter length from building span, pitch and overhang.
• Deck Board CalculatorNumber of deck boards and joists for a rectangular deck.
• Tile CalculatorHow many tiles and boxes for a floor or wall, including grout joints and waste.