Business & Finance • Oct 26, 2026

How Custom Mailer Boxes Impact E-Commerce Shipping

By Empress Packaging

8 Views

A custom mailer box is able to reduce a shipping bill, increase a damage rate, or both within the same month. What are you doing? It cannot be told by a supplier brochure, nor by a single order. Your stuff yourself can, should you measure. Empress Packaging is a manufacturer of custom mailer boxes in the USA.

What are four figures to indicate what a mailer altered?

Monitor cost per shipment, the rate of damage and claims, the number of seconds it took to pack an order and the number of customer contacts that refer to the box. Get costs out of carrier invoices, which indicate the billable weight and zone on which the parcels were billed. Take a baseline of the current custom mailer box supplier over a period of several weeks initially to rule out a seasonal swing as a box effect.

Record what would cause you to switch before the first shipment and before the goal can be rewritten by one good month, write down what it would take to get it to be lower cost per shipment and not increase the damage.

 

How do you operate the trial?

Send the old cheap custom mailer boxes and the new custom mailer each week, at the same time, on the same products, carriers, and weeks, on alternate order numbers. To compare this month to the previous month is to hold the box responsible for all the other changes. Ask your custom mailer box supplier to quote two volumes: a test run that is large enough to give a clear result and the volume you anticipate to continue.

At least 30 packs of each version at one station. Leave the first few boxes of the new pack, as everybody folds slowly the first time.

 

What is the number of shipments that are sufficient?

Cost and packing time appear quick, as each shipment generates a number. Rarely damaged, it requires volume. With a 1 percent rate of damages, 200 shipments generate an average of two claims and approximately 13 percent of trials of that magnitude do not have any claims at all. The duration to see a fall of 2 to 1 reliably is about 2,300 shipments per version of the box (95 percent confidence, 80 percent power). So that a little pilot may get the cost question out of the way and leave the damage question open. Define damage once and use it on the two boxes.

 

Why must there be a second column?

Inexpensive custom mailer boxes can score high on the cost line and lose on the damage line and therefore should be scored on both. Suppose that a mailer will save 40 cents on the billable weight, but will increase the damage by one point on a replacement cost of 35. That recovers 35 cents of the saving, and the last 5 cents is consumed by ten more seconds of packing labor at 18 an hour.

 

Add to customer service what?

Request assistance to label all contacts that mention the custom mailer box printing and read the labels next to the numbers. They pick up what damage counts miss: a mailer which scores high on cost and attracts a label of hard to open or lid popped open must have its closure changed before a bulk run.

 

FAQs

Q: What is the duration of the trial?

A: Until every version is shipped to the number you require, at least a month per week swings even.

Q: Is a bulk order required to be tried at all?

A: The former short run is more expensive than bulk custom mailer boxes, but less expensive than a bulk run of the incorrect box. Get quote custom mailer box printing at both quantities.

Q:What in case the savings appear small?

A: First check packing, as a slower fold may consume a little labor saving.

Q; Is there a physical sample available prior to bulk production?

A: Prior to bulk production there is physical evidence. Prepack a few with actual orders in advance of trial.

 

Get a free quote on custom mailer boxes.

Provide size and weight of your products and the number of deliveries per month and Empress Packaging will offer you a price quote on  bulk custom mailer boxes both on a trial basis and on a volume basis. Ask about a free query@empresspackaging.com at this given email or call (888) 900-7629.