If you're running a CNC router, laser cutter, or plasma table, material is your biggest expense. And if you're laying out parts manually or using basic nesting tools, you're likely wasting 15-30% of every sheet. Here's how to fix that.
Before you can improve, you need to know where you stand. For your next five jobs, measure the total sheet area you start with and the total part area you cut. The difference is your waste. Most shops are shocked to discover they're losing 20-30% — which translates to thousands of dollars per year.
The simplest optimization is batching. Instead of nesting each job separately, group all parts that share the same material and thickness across multiple jobs. A 24-part cabinet job and a 10-part shelf job on the same 3/4" plywood? Nest them together. More parts on the same sheet means more opportunities for the algorithm to fill gaps.
Manual layouts leave gaps that algorithms fill. Even basic nesting software typically saves 10-15% over manual placement. Advanced tools with field-based optimization — like NestClass's admissibility scoring — save another 5-10% on top of that by preventing dead zones that trap unusable material.
If your parts don't have grain direction requirements, allowing 90° rotation dramatically improves utilization. A tall narrow part might fit perfectly sideways in a gap that nothing else can fill. Always enable rotation unless the material demands a specific orientation.
Your blade or laser beam has width. If you don't account for kerf in your nesting, parts will be slightly undersized or overlap. Proper kerf compensation in the nesting stage (not just at the toolpath stage) improves both fit accuracy and utilization.
This is the step most shops skip entirely. After cutting, the remaining material matters. If your nesting tool shreds the leftover space into unusable slivers, that material goes in the scrap bin. If it leaves behind one large, clean remnant — that's your starting stock for tomorrow's small job. NestClass's Offcut Preservation Mode does exactly this.
Keep measuring waste after each optimization. Compare month over month. Set a target (most shops can get under 15% waste with proper optimization) and hold yourself to it.
A shop cutting 10 sheets per day of $65 plywood, reducing waste from 25% to 12%, saves $8,450 per year. For expensive materials like stainless steel or specialty composites, the savings multiply dramatically.