How to Calculate Sheet Yield
Sheet yield (or material efficiency) tells you how much of your purchased material actually becomes finished parts versus scrap. It is the single clearest metric for judging a cutting plan. Here is how to calculate it and what drives it.
The yield formula
Yield is the total area of usable parts divided by the total area of stock used, expressed as a percentage. If your parts add up to 8.5 m² and you used 10 m² of sheets, your yield is 85%.
Yield (%) = (total part area ÷ total stock area) × 100.
What lowers yield
- Kerf lost to every cut.
- Trim removed from sheet edges.
- Offcuts too small to reuse.
- Grain locking that prevents efficient rotation.
- Highly varied part sizes that pack poorly.
What raises yield
Optimized layouts, allowing rotation where possible, batching jobs together, reusing offcuts, and choosing the best stock size all push yield higher. Moving from hand layouts to software is usually the biggest single jump.
Tracking yield over time
CutList Machine reports yield on every job. Tracking it across projects shows whether your process is improving and highlights which products waste the most material, guiding design and stock decisions.
Frequently asked questions
Is 100% yield possible?
Practically never. Kerf, trim, and unavoidable offcuts always consume some material. Optimized rectangular cutting commonly reaches 90–97%.
Should yield include reusable offcuts?
Two ways exist: count only parts (conservative) or also credit large reusable offcuts. Pick one definition and apply it consistently to compare jobs fairly.
Put this into practice
Plan tighter layouts and cut less waste with the free CutList Machine optimizer.
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