Cut List OptimizerPanel & Sheet Cutting Layout
Optimize how your parts are cut from standard sheets to minimize waste. Calculate sheets required, material yield, offcut area and cost using guillotine and nesting strategies for plywood, MDF and laminates.
Why this calculation matters
The cut list decides how many sheets you buy and how much of each one becomes offcut. On a batch job, a few percent of yield is the difference between quoting profitably and absorbing the waste.
Cut List Optimizer
Sheet Cutting Layout Optimizer
Standard: 2440 x 1220 (8x4 ft).
Blade thickness lost per cut.
| Metric | Value | Detail |
|---|
About Cut List Optimizer
The Cut List Optimizer calculates how many parts can be cut from a standard sheet and how many sheets a job needs, accounting for the saw kerf lost at every cut. Efficient nesting directly reduces material cost - the largest single expense in panel furniture - and minimizes offcut waste. This tool compares both grain-fixed and rotatable layouts to find the best yield. Use it as a free cutting list optimiser for one-off jobs — it produces a panel saw cutting layout with fewer offcuts.
Where Is This Used?
Formulas Used
Parts across length = floor((Sheet_L + kerf) / (Part_L + kerf))Parts across width = floor((Sheet_W + kerf) / (Part_W + kerf))Parts per sheet = parts_L x parts_W (best of both orientations)Sheets needed = ceil(Quantity / Parts_per_sheet)Yield % = (used part area) / (total sheet area) x 100How the calculation works
Rotating the part is checked because a grid that wastes a strip in one direction often wastes far less in the other. The yield figure counts every sheet bought, including the partly used last one.
Show the formula
Parts per sheet = the better of as-drawn and rotated grid fits, each floor(sheet length / part length) x floor(sheet width / part width). Sheets = ceiling(quantity / parts per sheet). Yield = used area / total sheet area.Straight guillotine grid cuts, no defect avoidance and no offcut reuse. Check grain direction before treating the layout as a cutting list.
References
No external standard governs this calculation — it is arithmetic from your inputs. Take product-dependent figures from the manufacturer data sheet, not from here.
Limitations of this calculation
Assumes defect-free sheets of uniform size and a single cutting sequence. It does not account for cutting to defect, damaged sheet corners, trim allowance on delivered oversize, offcut reuse from stock, or machine-specific clamping and rip limits.
Do not use this for Firm cutting instructions without checking grain direction and sheet condition against the actual stock.
Figures are engineering estimates from the inputs and assumptions shown. Verify against the actual material and, where the result affects structure or safety, against a qualified professional.
- Guillotine grid fit: parts across = floor((Sheet + kerf) / (Part + kerf))
- Sheets = ceil(quantity / parts per sheet)
Formula checked against the sources above by an automated regression test (tests/verify-phase3b.js) that derives each expected value independently of this page. Last reviewed .
How to use this tool
- Enter your material and machine details below, then press Calculate.
- Pick your grain / rotation from the dropdown.
- Fill in sheet length, sheet width, part length, part width.
- Press Calculate.
Worked example
Common mistakes to avoid
- Optimising one sheet at a time. Optimising across the whole job's sheets finds better combinations.
- Entering finished part sizes without the saw kerf between parts.
- Ignoring which edges get banded. A part that needs banding on two edges must be cut smaller.
Frequently Asked Questions
Wood species data
Density, hardness and movement for 60 timbers