Good for straight stock
Use this page for dimensional lumber, face-frame rails and stiles, trim, dowels, pipe, and other jobs where only the cut length matters.
Free 1D cutting optimizer
Board cut calculator
Plan repeatable cuts from fixed-length lumber, trim, molding, pipe, or bar stock. The calculator uses best-fit decreasing and includes blade kerf between consecutive pieces.
Linear stock settings
Use one unit throughout. The optimizer assumes square cuts and stock with one usable continuous length.
Board layouts
How kerf is handled
The first piece uses its own length. Each later piece on the same board uses its length plus one kerf, matching the material removed between neighboring pieces.
Check the real stock
Allow for damaged ends, squaring cuts, defects, and grain selection before buying. Enter the usable stock length, not just the nominal length on the label.