Sheet
Part
Result
Parts per sheet
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This calculation is for informational purposes only and does not replace advice from a qualified professional. Formulas and rates may not fit your exact situation — double-check the figures before making decisions.
How it is calculated
The calculator lays parts out in a simple grid along both axes — without rotation and with the part rotated 90° — and takes whichever gives more parts. Parts per row = the integer part of (usable width + kerf) ÷ (part width + kerf); the same along height. Usable sheet dimensions are reduced by the edge trim on both sides.
This is a simple grid layout, not full 2D nesting optimization: it doesn't rearrange parts into the leftover strip from one orientation to squeeze in a few more. For typical parts and industrial cutting the result usually matches or comes very close to optimal; for an awkward combination of sizes it's worth checking the layout in dedicated nesting software.
Waste percentage = 1 − (part count × part area) ÷ sheet area, as a percentage. If you enter the number of parts needed, sheets needed = ceiling(parts needed ÷ parts per sheet).