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Wood cut list optimizer

Plan straight cuts across a limited stock of timber lengths. Include saw kerf and end trim, then download a cut list.

Your workbench

Wood cut list optimizer

Available stock

One material and cross-section per plan. Add a separate row for each stock length.

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Parts to cut

Enter finished lengths. Kerf and end trim are added separately.

◉ Your dimensions stay in this browser.

YOUR LIVE ESTIMATE
4barsStock bars used
Parts placed14 / 14
Material utilization86.2%
Reusable offcuts1,038 mm
Kerf loss42 mm
End trim80 mm
Stock length used8,400 mm

Three greedy layouts are compared. This is a practical suggested plan; the fewest possible bars are not guaranteed.

Your cutting layout

mm
Finished piecesSaw kerfTrim / offcut
STOCK 012,400 mm · Offcut 31 mm
A: 780 mmA · 780A: 780 mmA · 780A: 780 mmA · 780

A: 780 mmA: 780 mmA: 780 mm

STOCK 022,400 mm · Offcut 28 mm
A: 780 mmA · 780B: 520 mmB · 520B: 520 mmB · 520B: 520 mmB · 520

A: 780 mmB: 520 mmB: 520 mmB: 520 mm

STOCK 032,400 mm · Offcut 142 mm
B: 520 mmB · 520C: 340 mmC · 340C: 340 mmC · 340C: 340 mmC · 340C: 340 mmC · 340C: 340 mmC · 340

B: 520 mmC: 340 mmC: 340 mmC: 340 mmC: 340 mmC: 340 mm

STOCK 041,200 mm · Offcut 837 mm
C: 340 mmC · 340

C: 340 mm

Planning precision: 0.000001 mm internally. Bars are drawn to a common length scale; the diagram is not a physical cutting template.

A plan you can check.

The method

Sort parts longest first → try three greedy packing strategies → compare unplaced parts, stock length and bar count. Each cut consumes its finished length plus kerf; at the last edge, kerf is capped by the material left.

Worked example

One 1,000 mm bar can produce 600 mm and 397 mm pieces with a 3 mm kerf and no end trim. A 600 mm + 400 mm pair does not fit once the kerf is included.

How it works

  1. Add the lengths and quantities of timber you have.
  2. Add finished part lengths and your saw kerf; set trim for each end.
  3. Review placed and unplaced parts. Print or download the cut list.

Good questions

Is the result globally optimal?+

No. We compare three bounded greedy strategies. A suggested plan may use more stock or leave a part unplaced even if another arrangement is possible.

Can this cut plywood sheets?+

This is a one-dimensional planner for straight timber, tubes or strips of the same cross-section. It does not optimize rectangles on sheet goods.

What happens at the last edge?+

A part that exactly uses the remaining stock needs no extra kerf. If a smaller tail remains than the kerf width, only that tail is counted as kerf loss.

Are unused bars counted as waste?+

No. Only stock used in the plan is included in utilization. Unused inventory is left untouched.