CALCWOOD.
Discover a world of smart calculations, practical know-how, and take your projects to the next level.
Enter a few dimensions and get an exact result, a dimensioned drawing and a PDF plan for the workshop – no sign-up, in six languages, in millimetres or inches.
Calculators sweated through:
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Stairs & Stringer Calculator
FREE
BETA
Free straight and U-shaped stairs with a landing. Ideal stride, comfort index, building code check, stringer drawings with marks for no-protractor layout, and a PDF.
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Drawer Box & Cabinet Calculator
FREE
Free drawer box calculator for Blum undermount, soft-close, and standard slides. Get exact box dimensions, overlay/inset front layout, and a PDF cut list.
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Equal Spacing Calculator
FREE
Free equal spacing calculator for balusters, fence pickets, slat walls, deck joists and studs. Get perfectly even gaps and running dimensions instantly.
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Heat Loss Calculator
NEW
BETA
Visual heat loss and insulation calculator. Compare wall assemblies, insulation materials, thicknesses, windows, doors and thermal bridges. See annual energy loss, heating costs, savings charts and estimated payback based on your own insulation price.
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Smart Mix Ratio Calculator (2K)
FREE
BETA
Genial tool for epoxy resins, lacquers, and adhesives. Calculates exact ratios, visualizes mixing cups, handles waste factor, and estimates costs.
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Shelf Sag Calculator
FREE
The modern visual alternative to the Sagulator. Calculate shelf sag and deflection over time for wood, plywood, MDF, and particleboard shelves. Free online tool..
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