Work through the task
- Measure internal box and protected product envelopes; do not infer filler dosage from empty envelope volume.
- Cost measured filler dosage or a complete protective set, including actual assembly time.
- Obtain new freight quotes and verify equivalent protection before calculating change-cost break-even.
Tools for this job
Box Void Volume Calculator
Check that one rectangular envelope fits in an orthogonal orientation, then subtract its volume.
Open calculator →Void Fill Cost per Parcel Calculator
Measure dosage and usable pack yield in the same dispensed state.
Open calculator →Protective Packaging Set Comparison Calculator
Compare complete qualified sets, including assembly.
Open calculator →Packaging Right-Sizing Break-Even Calculator
Use actual quoted freight for each finished package and complete material cost including protection.
Open calculator →A worked example
A 24 L internal box minus a 9 L envelope leaves 15 L geometric free space.
Use your supplier specification and quotation. These numbers demonstrate the arithmetic; they are not market prices or a packaging suitability assessment.
Checks before you decide
- Internal box length
- Internal box width
- Internal box height
- Product envelope length