{ "slug": "nesting-yield-scrap", "title": "Nesting Yield & Scrap Calculator", "heading": "Sheet Nesting Yield Calculator", "category": "other", "url": "https://www.revenuelab.fyi/toolbox/nesting-yield-scrap", "summary": "Material utilization percentage and scrap cost from a sheet nest.", "description": "Nesting yield tells you what fraction of a raw sheet actually becomes finished parts versus drop and skeleton scrap, and it's often the single biggest lever on material cost for laser, plasma, and waterjet cutting shops where raw material is the dominant cost driver, more than machine time or labor. This calculator takes your sheet size, the number of parts nested per sheet, and each part's net area, then reports utilization percentage and the dollar cost of scrap per sheet and per part. A good nest for rectangular or near-rectangular parts should hit 75-85% utilization; irregular or curved parts often land at 50-70% even with good nesting software, and that's normal, not a failure. Use this to compare nesting software outputs, decide whether a different sheet size reduces scrap, or negotiate remnant/drop credit into your material cost accounting since usable drop offsets some of that scrap cost.", "formula": "Utilization % = (Parts × Part Area) ÷ Sheet Area. Scrap Cost = Sheet Cost × (1 − Utilization%). Cost per Part (material) = Sheet Cost ÷ Parts per Sheet.", "dateModified": "2026-09-30", "run_url": "https://www.revenuelab.fyi/api/public/calc?tool=nesting-yield-scrap", "inputs": [ { "id": "sheetLength", "label": "Sheet length", "kind": "number", "hint": null, "default": 120, "unit": "in", "min": 1, "max": null }, { "id": "sheetWidth", "label": "Sheet width", "kind": "number", "hint": null, "default": 60, "unit": "in", "min": 1, "max": null }, { "id": "partArea", "label": "Net area per part", "kind": "number", "hint": null, "default": 36, "unit": "in²", "min": 0.1, "max": null }, { "id": "partsPerSheet", "label": "Parts nested per sheet", "kind": "number", "hint": null, "default": 110, "unit": null, "min": 1, "max": null }, { "id": "sheetCost", "label": "Cost per sheet", "kind": "number", "hint": null, "default": 145, "unit": "$", "min": 0, "max": null } ], "outputs": [ { "id": "utilization", "label": "Material utilization", "format": "percent", "hint": null, "primary": true }, { "id": "scrapCost", "label": "Scrap cost per sheet", "format": "currency", "hint": null, "primary": false }, { "id": "costPerPart", "label": "Material cost per part", "format": "currency", "hint": null, "primary": false }, { "id": "sheetArea", "label": "Total sheet area", "format": "number", "hint": null, "primary": false } ], "worked_example": { "inputs": [ "Sheet length: 120 in", "Sheet width: 60 in", "Net area per part: 36 in²", "Parts nested per sheet: 110", "Cost per sheet: 145 $" ], "outputs": [ "Material utilization: 55.0%", "Scrap cost per sheet: $65.25", "Material cost per part: $1.318", "Total sheet area: 7,200" ] }, "how_to": { "title": "How to use this", "steps": [ "Enter sheet length (in).", "Enter sheet width (in).", "Enter net area per part (in²).", "Enter parts nested per sheet.", "Enter cost per sheet ($).", "Read your material utilization on the right — it updates as you type.", "Hit Share to keep the scenario or send it to someone." ] }, "scenarios": [ { "name": "Conservative", "description": "Lower-end numbers — what if things land soft?", "values": { "sheetLength": 72, "sheetWidth": 36, "partArea": 22, "partsPerSheet": 66, "sheetCost": 85 } }, { "name": "Typical", "description": "Defaults — the most common real-world setup.", "values": { "sheetLength": 120, "sheetWidth": 60, "partArea": 36, "partsPerSheet": 110, "sheetCost": 145 } }, { "name": "Ambitious", "description": "Higher-end numbers — what if things really pop?", "values": { "sheetLength": 192, "sheetWidth": 96, "partArea": 58, "partsPerSheet": 176, "sheetCost": 230 } } ], "limitations": [ "Estimates assume standard, average conditions — local rules, pricing, and materials vary.", "Results are rounded for readability; add a buffer before ordering, booking, or committing.", "Double-check anything with a real cost attached against a local quote." ], "faq": [ { "q": "What's a good utilization target?", "a": "75-85% is solid for rectangular or blocky parts on standard sheet sizes. Highly irregular shapes, parts with large cutouts, or small-batch jobs where common-lining and true-shape nesting isn't worth the setup time often land at 50-65%, which is acceptable if the alternative is expensive nesting software time that exceeds the material savings." }, { "q": "Does drop/remnant material offset scrap cost?", "a": "Partially — if your shop tracks and reuses remnants for smaller jobs, you should credit back an estimated remnant value (many shops use 20-40% of virgin material cost) against the scrap cost shown here rather than treating 100% of unused area as a total loss." }, { "q": "How much does sheet size choice affect yield?", "a": "Significantly. Standard sheet sizes (48x96, 60x120, 4x10) rarely match your part geometry perfectly. Custom or coil-fed blank sizes matched to part dimensions can push utilization 10-20 points higher, but only pay off if your volume justifies the special-order material lead time and cost premium." }, { "q": "Should scrap cost include cutting time on the skeleton?", "a": "This calculator only prices raw material scrap. If your laser or plasma also cuts through skeleton area (pierces, travel moves), add that cycle time cost separately using a laser cutting cost calculator, since scrap area still consumes machine time even though it produces no part." } ], "related": [ "https://www.revenuelab.fyi/toolbox/sheet-metal-bend-allowance", "https://www.revenuelab.fyi/toolbox/laser-cutting-cost-per-minute" ], "license": "CC-BY-4.0", "citation": "RevenueLab — Nesting Yield & Scrap Calculator (https://www.revenuelab.fyi/toolbox/nesting-yield-scrap)" }