Woodworking & Carpentry Calculators

Cabinet Door Size CalculatorCalculate finished cabinet door dimensions for overlay-style mounting. Opening width (in) Opening height (in) Overlay each side (in) Gap between […]Deck Board CalculatorCalculate deck boards and total linear feet for a deck build. Deck length (ft) Deck width (ft) Board width (in) […]Dovetail Spacing CalculatorCalculate dovetail pin and tail spacing for a hand-cut dovetail joint. Board width (in) Number of tails CalculateReset Tail Spacing […]Drawer Box CalculatorCalculate inside drawer-box dimensions from the opening and the slide hardware reduction. Opening width (in) Opening height (in) Drawer depth […]Fence Board CalculatorCalculate pickets, posts, and rails for a board fence. Fence length (ft) Fence height (ft) Picket width (in) Post spacing […]Finish Nail CalculatorCalculate finish nails for a trim installation. Linear feet of trim Spacing (in) Nails per point CalculateReset Finish Nails — […]Lumber CalculatorCalculate total board feet of lumber for an order. Board feet is the standard pricing unit for rough and dimensional […]Plywood Sheet CalculatorCalculate plywood sheets for a project. Each 4×8 sheet covers 32 square feet. Project area (sq ft) Waste % CalculateReset […]Pocket Hole Spacing CalculatorCalculate pocket hole spacing for a board: end holes plus evenly spaced middle holes. Board length (in) Target spacing (in) […]Shelf Span CalculatorCalculate the maximum safe span for a shelf based on its material and expected load. Shelf material3/4 in Plywood3/4 in […]Stair Stringer CalculatorCalculate stair stringer details: number of risers, exact riser height, treads, and stringer length. Total rise (in) Target riser height […]Trim Molding CalculatorCalculate baseboard, casing, or crown molding linear feet for a room. Room perimeter (ft) Doorways Door width (ft) Waste % […]Wood Glue Coverage CalculatorEstimate how much wood glue you need for a joint, by joint length and type. Linear feet of joint Joint […]
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The calculators and tools on Formula Factory are provided for general guidance and informational purposes only. Results are estimates based on standard formulas and the values you enter — they do not constitute professional engineering, electrical, or architectural advice. Always verify calculations with a qualified professional before making decisions for any safety-critical, code-compliance, or commercial application. Formula Factory makes no representations or warranties as to the accuracy or completeness of any result, and accepts no liability for errors, omissions, or any outcomes arising from reliance on this information.