Packrift scenario model

Marketplace Multi-SKU Bundles: Long-zone DIM exposure

Bundles are where average carton logic breaks down. The same master carton may work for operations while quietly adding cube to most orders. 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.

Open this model in the calculator All scenarios

Recommended path Poly mailer Best for compressible, low-breakage items

Annual impact $65,375 Modeled savings versus current

Billable weight 1.67 lb Current: 9.5 lb

Utilization 103% Current: 18%

Decision read

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 10 x 7 x 3 in, 1.6 lb per unit, and 1 unit per order. The current package is 15 x 11 x 8 in with 94 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.

Procurement rule

Candidate rule

Use fit screens to split stable bundles from exception-prone bundles before changing the pack rule.

Cost model

Assumptions used

$1.18 per billable pound.
$20.50 per warehouse labor hour.
1.8% current damage rate.
$40.00 expected replacement or support cost.

Watch list

Risk checks

SKU mix volatility
pick sequence
insert collisions
exception rate

Pilot plan

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.

Related pages

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	15 x 11 x 8 in	18%	9.5 lb	$13.78	$0	Baseline
Poly mailer	12.25 x 9 x 2.05 in	103%	1.67 lb	$3.30	$65,375	Best for compressible, low-breakage items
Padded mailer	12.5 x 9.25 x 2.61 in	77%	2.17 lb	$3.98	$61,152	Adds light protection without carton void
Multi-depth carton	11.5 x 8.5 x 4.7 in	51%	3.31 lb	$5.73	$50,263	Best carton option for variable order depth
Corrugated carton	12 x 9 x 5.45 in	39%	4.23 lb	$6.81	$43,520	General-purpose safe fit
Cut down current carton	15 x 11 x 4.95 in	28%	5.88 lb	$9.32	$27,828	Operational fix using current carton family
Rigid mailer	11.5 x 8.25 x 4.2 in	58%	2.87 lb	$4.78	$56,173	DIM penalty, not recommended for this item profile