Measure the usable space
- Distinguish overall bag width and length from usable internal space.
- Allow for the actual opening, seal position and any gusset.
- Where possible, send the current bag flattened alongside the component.
State units and thickness correctly
- Use mm for dimensions and microns (µm) for thickness.
- Say whether thickness is for one film layer if this is known.
- Do not infer thickness or density from photographs.
- Numeric entry limits in the material helper, dimension sketch and inquiry form are input-validation limits only; they do not represent manufacturing capability.
Confirm fit
- Review the packing method and clearance using the real component.
- A flat sketch does not verify handle position, zipper clearance or tear behavior.
- Factory-confirmed drawing and sample decisions precede a production release.