Packrift scenario model
Books, Documents, And Flat Goods: Long-zone DIM exposure
Flat orders rarely need carton height. The operational question is whether bend and corner protection can be preserved while removing void. This long-zone dimensional-weight pressure model uses 520 monthly orders and a DIM divisor of 139 to compare the current Corrugated carton against smaller protective formats.
What this scenario is testing
This version stresses carrier cost by modeling a higher landed rate per billable pound, which makes cube reduction more important than material savings alone. The model starts with an item profile of 11 x 8.5 x 0.7 in, 1.35 lb per unit, and 1 unit per order. The current package is 14 x 10 x 4 in with 70 seconds of pack time.
Packrift treats the result as a screening recommendation. It is strong enough to prioritize a pilot, not strong enough to replace invoice analysis, damage tracking, or warehouse observation.
Candidate rule
Use rigid mailers for flat orders only when the product cannot shift and the largest edge stays below the mailer bend threshold.
Assumptions used
- $1.18 per billable pound.
- $18.50 per warehouse labor hour.
- 1.3% current damage rate.
- $28.00 expected replacement or support cost.
Risk checks
- corner crush
- bend resistance
- label scannability
- insertion speed
How to test it
- Select a long-zone lane with repeated shipments.
- Compare carrier invoice billable weight against the modeled billable weight.
- Keep the package change lane-specific until invoice variance is understood.
Same segment
Package Candidate Comparison
Generated from the same Packrift Flex Fit assumptions| Package | Size | Utilization | Billable weight | Cost/order | Annual impact | Status |
|---|---|---|---|---|---|---|
| Corrugated carton baseline | 14 x 10 x 4 in | 11% | 4.03 lb | $6.40 | $0 | Baseline |
| Poly mailer | 13.25 x 10.5 x 0.75 in | 59% | 1.42 lb | $2.58 | $23,795 | Best for compressible, low-breakage items |
| Padded mailer | 13.5 x 10.75 x 1 in | 42% | 1.46 lb | $2.75 | $22,733 | Adds light protection without carton void |
| Rigid mailer | 12.5 x 9.75 x 1.03 in | 49% | 1.49 lb | $2.80 | $22,478 | Flat-product fit |
| Multi-depth carton | 12.5 x 10 x 1.53 in | 32% | 1.64 lb | $3.37 | $18,903 | Best carton option for variable order depth |
| Cut down current carton | 14 x 10 x 1.78 in | 25% | 1.79 lb | $3.67 | $17,022 | Operational fix using current carton family |
| Corrugated carton | 13 x 10.5 x 2.28 in | 20% | 2.24 lb | $4.04 | $14,712 | General-purpose safe fit |