Quick answer
Chipboard, die-cut, bleed, cut line, and safe zone depend on the chosen supplier template. Use simple nesting estimates only for planning, then follow the supplier file specification.
Creator workflow
Capture the actual specification, quote, or platform setting for your project, then use the related calculation with those values rather than a generic market assumption.
Common mistakes
Do not treat a category label, supplier term, or platform policy as a universal product specification. Confirm the current version, territory, and contract terms that apply to you.
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Limits
This is educational planning material, not supplier, legal, tax, or platform advice.