What a plywood cut list calculator does
A plywood cut list calculator takes the list of parts you need (their length, width and quantity) and works out how to lay them out on full plywood sheets with as little waste as possible. Instead of guessing, you get a numbered cutting plan, a clear cut list, and the exact number of sheets to buy. cutlistlab does this entirely in your browser: there is nothing to install and no account needed.
How to use it
- Enter your parts. Add each part with its length, width and quantity. Give parts a name so they are easy to match later.
- Pick your plywood sheet. Choose a standard 4x8 ft (1220x2440 mm) sheet, a metric 2440x1220 mm panel, or enter your own size. Add offcuts you already have so they get used first.
- Set the kerf. Enter the width your saw blade removes per cut so the parts come out exactly to size.
- Read the plan. The calculator packs everything onto the fewest sheets, shows the layout as a drawing, lists the cuts in order, and tells you how many sheets you need and how much is left over.
Why it saves material (and money)
Plywood is expensive, so every sheet you avoid buying counts. The calculator tries several packing strategies and keeps the best result, which usually beats laying parts out by hand. A few things make a real difference on plywood specifically:
- Grain direction. Plywood has a visible grain. Mark a part as grain-fixed and it stays oriented the right way; parts without grain rotate freely to pack tighter.
- Offcuts as stock. Add the leftover panels from earlier projects and the calculator uses them before cutting into a full sheet.
- Kerf and trim. The blade width and any edge you trim off a rough sheet are included, so the plan is realistic, not just theoretical.
Ready to plan your plywood cuts? Open the free calculator, enter your parts and get the layout with the least waste. No sign-up, nothing to install.
A worked example
As an example, say you are cutting parts for a small open plywood bookshelf from a single 2440 × 1220 × 18 mm sheet, with the grain running along the long panels.
| Part | Size (mm) | Qty |
|---|---|---|
| Side panel | 900 × 300 | 2 |
| Shelf | 764 × 300 | 3 |
| Back rail | 764 × 100 | 2 |
With grain locked on the sides and a 3 mm kerf, cutlistlab packs these onto about 1 full sheet, leaving roughly 30% as usable offcut that you can keep in your offcut stock for a later project. You optimise for least waste, fewest cuts or lowest cost, and you get a numbered cutting order to follow at home or hand to the builders' merchant.
Frequently asked questions
Is the plywood cut list calculator free?
Yes, and it needs no sign-up. It runs in your browser and your projects stay on your device unless you create an account.
What sheet sizes does it support?
Any size: a standard 4x8 ft (1220x2440 mm) sheet, a metric 2440x1220 mm panel, or your own. You can mix sizes and add offcuts.
Does it account for the saw blade kerf?
Yes. You set the kerf and it is included cumulatively, so parts come out to size.
Can it keep the grain direction the same?
Yes. Mark a part as grain-fixed and it stays oriented correctly; parts without grain rotate freely.