End Grain Chopping Board Calculator (Source Timber)

Uses the same cutting logic as the standard calculator, with extra checks against the timber dimensions you have on hand.

Finished Length (mm) Finished Width (mm) Finished Thickness (mm) Saw Kerf (mm) Finishing Allowance Per Face (mm) Trim Allowance Per End (mm) Jointing Allowance (mm) Round-Up Increment (mm) Strip Width (mm)

Source Timber Inventory

Add each timber size once and set how many boards of that size you have.

Length (mm) Width (mm) Thickness (mm) Board Count

Enable strict shop mode (per-stage allowance toggles)

Apply finishing allowance to final length Apply finishing allowance to final width Apply finishing allowance to thickness Apply trim allowance to first glue-up panel ends Apply trim allowance to final length Apply trim allowance to final width Apply jointing allowance per ripped strip (first glue-up) Apply jointing allowance per crosscut slice

Saved Calculations

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Assumptions (v3):

Round-up applies to derived size outputs using your selected increment. Kerf remains exact. In strict mode, allowance application can be toggled per stage; outside strict mode, all allowance toggles are treated as on.