How many 400 × 1000 mm pieces can you cut from a 2440 × 1220 mm sheet?

You can cut 7 pieces of 400 × 1000 mm from one 2440 × 1220 mm sheet with a 3 mm saw kerf and rotation allowed — 94% of the sheet ends up in parts.

The layout is 6 parts run lengthwise and 1 is turned across to use the strip that's left. At 94% this is an efficient size for the sheet — under 6% goes to kerf and offcut.

7 × 400 × 1000 mm nested on a 2440 × 1220 mm sheet
7 × 400 × 1000 mm on a 2440 × 1220 mm sheet, 3 mm kerf, rotation allowed. Dashed: largest offcut, a 217 × 400 mm piece. Indigo parts are turned 90°.
Open this layout in the optimizer →Add your other parts and re-nest

Kerf and grain

The 3 mm kerf doesn't cost a part here: 7 fit with or without it. There's still 217 × 400 mm left over after the last cut.

Rotation is doing real work. With the grain locked, so every part's 1000 mm side runs along the sheet's 2440 mm length, only 6 fit — the extra one comes from turning a part across the sheet. That's fine for paint-grade plywood, MDF or melamine; for show faces with visible grain, plan on 6 per sheet.

Parts per 2440 × 1220 mm sheet · share of the sheet in parts
Saw kerfRotation allowedGrain-locked (no rotation)
3 mm7 · 94%6 · 81%
None (theoretical)7 · 94%6 · 81%

How many sheets for a batch?

Pieces needed2440 × 1220 mm sheetsLast sheet
1023 of 7 — room for 4 more
2544 of 7 — room for 3 more
5081 of 7 — room for 6 more

Same 3 mm kerf, rotation allowed. A part-filled last sheet is the place to nest drawer bottoms, shelves or anything else from the same material.

FAQ

How many 400x1000 mm pieces can you cut from a 2440 × 1220 mm sheet?

You can cut 7 pieces of 400 × 1000 mm from one 2440 × 1220 mm sheet with a 3 mm saw kerf and rotation allowed — 94% of the sheet ends up in parts. The layout is 6 parts run lengthwise and 1 is turned across to use the strip that's left.

Does grain direction change how many 400 × 1000 mm pieces fit?

Rotation is doing real work. With the grain locked, so every part's 1000 mm side runs along the sheet's 2440 mm length, only 6 fit — the extra one comes from turning a part across the sheet. That's fine for paint-grade plywood, MDF or melamine; for show faces with visible grain, plan on 6 per sheet.

How many 2440 × 1220 mm sheets do I need for 25 pieces at 400 × 1000 mm?

4 sheets. At 7 per sheet, the last one carries 4 parts, leaving room for 3 more.

How this was worked out

EZNESTING's nesting engine (the same one the optimizer runs, in its default least-waste guillotine mode) was given more 400 × 1000 mm parts than could possibly fit on one 1220 × 2440 mm sheet, with a 3 mm kerf between parts and none at the factory edges. The parts it placed are the answer. That count is checked against simple grid layouts in both orientations (best of those: 7), so the page never shows less than a straight grid would give. No edge trim is assumed; if you skim 5 mm off a factory edge, re-run it in the optimizer with trim set.

Nearby sizes

Try any size in the sheet yield calculator, or lay out a full cut list with the plywood cut list optimizer, the 4×8 plywood cut calculator or the nesting optimizer.