Kerf · Cut lists · free
Plan every cut. Waste less wood.
Enter your sheets and the parts you need. Kerf lays them out to save material and prints a cutting plan you can take to the saw.
Your sheets
The boards you are buying or already have. Leave “How many” empty if you can buy more.
The parts you need
Lock the grain on parts where the wood pattern must run along the length. Kerf will never turn those.
Your cutting plan
Optimised, though not guaranteed to be the best possible. Check each cut before you make it.
Save this project
Keep several projects in this browser and switch between them.
A cut list should not have a meter
Popular optimisers give you five free tries or cap you at thirty parts. A cut list is arithmetic. Kerf does it for free, as many times as you like.
Optimised layouts
Kerf tries several packing methods on every job and keeps the one that uses the fewest sheets.
Real-world cuts
Every layout can be made with straight, edge-to-edge cuts on a table saw or track saw. The blade width is subtracted at every cut.
Grain respected
Lock the grain on any part and it will never be turned sideways.
Print and go
Numbered diagrams, a parts table and step-by-step cut order for each sheet, ready for the workshop.
No limits
Unlimited parts, sheets and re-runs. Millimetres or inches with fractions.
Projects saved locally
Save as many projects as you like in your browser, and back them up to a file.
Questions
What is kerf?
The width of wood your saw blade removes with each cut. It is usually about 3 mm (1/8 inch) for a table saw. Ignore it and parts at the end of a sheet come out short.
Is the layout the best possible?
It is optimised, not guaranteed perfect. Finding the perfect layout is a famously hard problem. Kerf runs several strong methods and keeps the best result, which is usually as good as a careful person with a pencil.
Can I use inches and fractions?
Yes. Switch to inches and type sizes like 23 1/2 or 3/4. Results show to the nearest 1/16 inch.
What does locking the grain do?
It stops Kerf from rotating that part, so the wood grain runs along its length. Turn it off for parts where grain does not matter, like MDF, to save material.
Can I mix materials?
Yes. Give each sheet a material, like 18mm ply or 6mm MDF, then choose which material each part is cut from.
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