Uniform panel grid estimate
Rectangular Panel Grid Yield Estimator
Compare simple rows and columns of one identical rectangular part. Enter actual sheet dimensions, trim allowances and kerf; the tool supplies no factory defaults or cutting approval.
Enter measurements → review geometry or arithmetic → confirm the real application. No order or approval is generated.
Enter your records
Required inputs must be complete. Only fields marked optional may be left blank. Enter 0 only when zero is deliberate; missing values remain unresolved. Use non-confidential references only.
Record fields
- Sheet length (mm)
- Sheet width (mm)
- Left trim (mm; 0 if none)
- Right trim (mm; 0 if none)
- Front trim (mm; 0 if none)
- Back trim (mm; 0 if none)
- Part length along sheet length (mm)
- Part width along sheet width (mm)
- Kerf between adjacent parts (mm)
- Required whole-part quantity
- Part orientation
Reviewable result
Enter records to begin.
Worksheet processing stays in this page. Inputs are not uploaded or stored, and reloading clears them. Page analytics are disabled here. Contact links and the quote form are separate actions; review the result before choosing to share it.
Worked example
A buyer estimates how many identical side panels for a shower enclosure fit on one trimmed sheet, and how many sheets an order needs.
Example figures are invented for illustration. They are not product data, prices or a quotation.
Example inputs
| Sheet length (mm) | 2440 |
|---|---|
| Sheet width (mm) | 1220 |
| Left trim (mm; 0 if none) | 10 |
| Right trim (mm; 0 if none) | 10 |
| Front trim (mm; 0 if none) | 10 |
| Back trim (mm; 0 if none) | 10 |
| Part length along sheet length (mm) | 600 |
| Part width along sheet width (mm) | 400 |
| Kerf between adjacent parts (mm) | 4 |
| Required whole-part quantity | 40 |
| Part orientation | Uniform 90° rotation allowed |
Result from the worksheet
Rectangular Panel Grid Yield Estimator LOCAL WORKSHEET — entered data only Normal grid: 4 × 2 = 8 parts. Rotated grid: 6 × 1 = 6 parts. Selected normal: 8 parts per sheet. Sheets for entered quantity: 5. Full-grid part area / original sheet area: 64.498791%. No product, inspection, installation, stock or delivery approval is generated.
How to read it
The tool compared the two grids: normal gives 4 x 2 = 8 parts, rotated gives 6 x 1 = 6, so it selected normal at 8 parts per sheet. For the 40 parts entered, 40 / 8 = 5 sheets. The 64.498791% figure covers full-grid part area only, so edge offcuts, defects and real cutting practice still need confirming with the fabricator.
Count a uniform grid inside a pre-trimmed rectangle
Usable length = sheet length − left trim − right trim; usable width = sheet width − front trim − back trim. Along either axis, count = floor((usable dimension + kerf) ÷ (part dimension + kerf)). This includes kerf only between adjacent parts and assumes the outer rectangle has already been trimmed to the entered usable size. Any allowance needed for those boundary cuts belongs in your trim inputs.
Rotation is an explicit choice
Grain locked keeps the entered part orientation. Uniform 90° rotation allowed compares an all-normal grid with an all-rotated grid and chooses the higher count, preferring normal on a tie. It does not mix orientations or sizes, so the result is not an optimum nesting yield. A required grain sequence or appearance match can invalidate either simple layout.
Sheet arithmetic is not a cutting program
Sheets needed = ceiling(required quantity ÷ parts per sheet). Area utilization is part area in one full estimated grid divided by original sheet area, not the usable trimmed area. Defects, clamping, tooling limits, tolerances, cut order, offcut reuse and final-sheet utilization are excluded. If no part fits, no sheet count is calculated. Ask the fabricator to confirm the actual plan.
Numerical scope
Numeric inputs accept at most six decimal places and magnitude 1,000,000. Geometry contact and grid counts use exact scaled-integer comparisons within that input scope, not an added physical clearance. Displayed decimal results are rounded to six places and do not establish measurement accuracy.
Uniform panel grid estimate questions
Does the estimator optimize mixed orientations?
No. It compares uniform grids only.
Where is kerf counted?
Between adjacent parts, not beyond the pre-trimmed outer boundary.
Can rotation be prohibited for grain direction?
Yes. Select Grain locked.
What does area utilization measure?
Part area in a full estimated grid divided by original sheet area.
Does the result approve a CNC or saw program?
No. The fabricator must prepare and approve the actual cutting plan.
Discuss the reviewed requirement
Use the result to identify questions for WNS Global. Offered products, specifications and commercial conditions still require separate confirmation.