My parts don't fit, or the results look wrong

Common reasons for missing parts, extra sheets or odd layouts, and how to fix them.

Updated September 27, 2026
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Quick checklist

A part isn't in any diagram

Check that its row checkbox is ticked (unticked rows are excluded), that it has a material when Material groups is on, and that its length and width aren't blank or zero.

Sizes are wildly off, like 25× too big

Your entry unit doesn't match what you typed. For example, you typed 600 meaning millimeters while the entry unit is in. Fix it in Settings → Units, or add the unit to the value (600mm).

It uses more sheets than I expected

Try Least waste as the nesting method. Check grain direction: parts locked to a grain can't rotate to fill gaps. Setting hidden parts to Any direction often saves a sheet. Also check your kerf and edge trim aren't larger than intended.

A long part is split in two

It's longer than your stock, so it was split into jointed segments. See Parts bigger than your stock.

The results say "The layouts below are from your last successful optimization"

Your latest edit left something that can't be optimized, such as an empty size. Fix the value and the layout updates.

Enter sheet and panel dimensions to see optimization

You need at least one material with a size and at least one part.

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