How do I write a cut list?

A cut list is one line per part: its finished length, how many you need and a label, with a separate list for each section and size you cut from. Write the length you want to hold in your hand, not the length you plan to cut. The blade width, end trim and mitres are settings in the optimiser, and building them into the lengths counts them twice.

A worked example

A shelving frame in 40×40 square hollow section: four legs and four shelves, each shelf a rectangle of two long and two short rails.

Label Length Qty
Leg1800 mm4
Long rail1160 mm8
Short rail420 mm8

That is the whole cut list: 19840 mm of parts. From 6000 mm bars with a 2 mm bandsaw blade, the floor is 3.31 bars, so at least 4.

The plan: 4 bars, proved optimal, every one cut the same way, 1800 + 1160 + 1160 + 420 + 420, with 1030 mm left on each. One layout, repeated, so whoever is on the saw learns it once. Cutting each size from its own bars takes 5.

Habits that save a bar

Finished lengths only

Enter the length of the part, not the part plus the blade. The optimiser adds a kerf for every cut it plans; add it yourself as well and every part comes out a blade width long.

One list per section

A 40×40×2 and a 40×40×3 are different stock, and so are two extrusion profiles. Make one list per section and grade, or tag each line with a material and let material groups keep them apart.

Mitres: write the long point

For a mitred part, write the length at its longest edge, switch on angle cuts and give the end angles. The optimiser works out what each mitre takes from the bar.

Label every line

Labels follow each part onto the plan and the PDF cutting sheets, so the person at the saw knows that a 1160 is a long rail and where it goes.

List the offcuts too

Usable lengths on the rack are stock you already paid for. List them as offcuts and the plan uses them when they help.

FAQ

What is a cut list?
A list of the parts to cut from stock: length, quantity and usually a label, grouped by material. It is the input to a cutting plan, which says which part comes off which bar.
What is the difference between a cut list and a cutting plan?
The cut list is what you need. The cutting plan is how to get it: how many bars to buy, and the layout of each one. A cut list optimizer turns the first into the second.
Can I paste a cut list from a spreadsheet?
Yes. One part per line as length, quantity and an optional label; two columns copied straight from Excel work as they are. More in cut lists in Excel.
Should the cut list include an allowance for waste?
No. List the parts you need and the plan works out the waste. Why a waste percentage is a guess.

Run your own cut list

The calculator is free, needs no account and takes up to 500 parts a job. It allows for the blade, uses your offcuts, and tells you when the plan is proved optimal.