Estimate wrap consumption
Stretch film usage estimator
Estimate film consumption from load perimeter, wrap height, film width, overlap, layers, pre-stretch, gauge, and extra containment allowance.
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✓ Planning result
Change any value and calculate again for a new result.
01 / Method
How to use this tool
- 1
Measure the load footprint and wrap height.
- 2
Enter the film width, overlap, wrap layers, and achieved pre-stretch.
- 3
Use the result to compare settings and validate it against actual roll consumption.
02 / Model
Assumptions
- Each turn follows the rectangular load perimeter.
- Vertical advance equals film width multiplied by one minus overlap.
- Film density is approximated at 0.92 g/cm³.
03 / Boundaries
Limitations
- Corners, neck-down, force-to-load, roping, top sheets, tails, breaks, and machine programs vary.
- Entered pre-stretch must reflect achieved—not rated—performance.
04 / Common questions
Frequently asked questions
What does pre-stretch change?
Higher achieved pre-stretch reduces the supplied roll length needed for the same applied path length.
Why include extra containment?
It provides a simple allowance for top and bottom wraps, corner travel, and tails not captured by a perfect helix.