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Plywood Cut Optimizer

List the pieces you need and it calculates the most efficient way to cut them from your sheet — minimizing waste.

Sheet settings

Mode

Cut list

Plywood is expensive and comes in 4×8 sheets. Give this your cut list and it works out how to lay the pieces out so you buy the fewest sheets and waste the least material.

How it works

The tool packs your required pieces onto standard sheets, accounting for the saw kerf — the material the blade turns into sawdust, typically about 1/8 inch — which is why cuts that look like they fit exactly on paper often do not fit in reality. It then reports the layout and how many sheets you need.

Example

Four panels at 24 × 30 inches look like they should fit neatly on one 48 × 96 sheet. Add a 1/8-inch kerf to each cut and the layout has to be planned properly or the last piece comes up short.

Tips & common mistakes

  • Account for the kerf, always. Every cut removes about 1/8 inch of material, and a cut list that ignores this produces final pieces that are mysteriously too small.
  • Cut the biggest pieces first, while the sheet is still big enough to support itself and you still have options. Once a sheet is chopped up you cannot un-chop it.
  • Plywood has a grain direction. If the finished piece will be visible, keep the grain running the same way across all the panels, even when rotating a piece would waste less material.
  • Have the store make the first long rip if you do not have a track saw. Breaking down a full sheet alone on sawhorses is awkward, unsafe, and rarely straight.

Frequently asked questions

How do I get the most out of a sheet of plywood?

Lay out all the pieces before you cut any of them, cut the largest ones first, and allow for the 1/8-inch kerf on every cut. Planning the whole sheet routinely saves an entire sheet on a cabinet project.

What is kerf and why does it matter?

Kerf is the width of material the saw blade destroys — about 1/8 inch. Across a sheet with several cuts it adds up to most of an inch, which is more than enough to leave your last piece short.

How many pieces fit on a 4x8 sheet?

It depends entirely on the layout, which is what this tool is for. A good layout regularly fits a whole cabinet's worth of parts on one sheet where a careless one needs two.