Packrift scenario model

Subscription Refill Orders: Long-zone DIM exposure

Subscription orders are attractive packaging tests because quantities repeat. The package rule can be narrow and still affect meaningful volume. This long-zone dimensional-weight pressure model uses 520 monthly orders and a DIM divisor of 139 to compare the current Multi-depth 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 $37,560 Modeled savings versus current

Billable weight 1.21 lb Current: 5.44 lb

Utilization 90% Current: 15%

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 8 x 5 x 2.8 in, 1.15 lb per unit, and 1 unit per order. The current package is 12 x 9 x 7 in with 80 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

Create separate rules for one-cycle, two-cycle, and family-plan quantities rather than letting one carton cover every subscription order.

Cost model

Assumptions used

$1.18 per billable pound.
$19.50 per warehouse labor hour.
1.2% current damage rate.
$34.00 expected replacement or support cost.

Watch list

Risk checks

quantity bands
insert cadence
return rate
fulfillment rule accuracy

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
Multi-depth carton baseline	12 x 9 x 7 in	15%	5.44 lb	$8.42	$0	Baseline
Poly mailer	10.25 x 7 x 1.78 in	90%	1.21 lb	$2.40	$37,560	Best for compressible, low-breakage items
Padded mailer	10.5 x 7.25 x 2.25 in	67%	1.24 lb	$2.53	$36,750	Adds light protection without carton void
Multi-depth carton	9.5 x 6.5 x 4.16 in	45%	1.85 lb	$3.67	$29,627	Best carton option for variable order depth
Corrugated carton	10 x 7 x 4.91 in	33%	2.47 lb	$4.37	$25,281	General-purpose safe fit
Cut down current carton	12 x 9 x 4.41 in	24%	3.43 lb	$5.91	$15,651	Operational fix using current carton family
Rigid mailer	9.5 x 6.25 x 3.66 in	53%	1.56 lb	$2.90	$34,424	not recommended for this item profile