You might spend hours choosing a product, perfecting its photos, and deciding what to charge.
Then you buy the same shipping boxes you ordered last time—without giving them much thought.
A new federal investigation is a reason to look more closely at that purchase.
Major containerboard producers have disclosed subpoenas connected to a U.S. Department of Justice investigation. For small businesses, the immediate question is practical: What should you watch when buying the boxes that carry your profits out the door?
What Happened in the Containerboard Pricing Investigation?
According to Packaging Dive’s reporting, updated November 5, 2026, Smurfit Westrock, International Paper, and Packaging Corporation of America disclosed September subpoenas connected to a grand jury investigation involving containerboard pricing and sales. The reporting identifies the Northern District of Illinois as the location of the investigation.
The companies say they are cooperating. Smurfit Westrock says it believes its business practices comply with U.S. antitrust laws. The reporting also describes a separate, ongoing civil lawsuit alleging price fixing; the relevant defendants dispute wrongdoing.
A subpoena is an investigative step, not a finding of guilt. A grand jury investigation can lead to charges, but it does not establish that a crime occurred. The DOJ explains the charging process here.
What Is Containerboard—and Why Should You Care?
Containerboard is the paper material used to make corrugated packaging. It includes linerboard and the material that forms the fluted layer between the liners.
It sits upstream from the finished shipping boxes on your packing table. PCA describes those materials and their use in its November 5 quarterly filing.
However, the price of containerboard and the price of a finished box are different things. Your purchase also reflects manufacturing, dimensions, construction, quantity, freight, and the supplier’s costs.
That means a headline about containerboard cannot tell you exactly what your next box order should cost.
It can give you a reason to check.
Small Increases Deserve Real Attention
Consider a hypothetical online store shipping 2,000 orders each month.
If its average packaging cost rises by 15 cents per order, that adds $300 a month—or $3,600 a year, assuming the same order volume.
That calculation does not prove anyone overcharged the store. It shows why a small expense deserves a place beside advertising, payment fees, and shipping when you review margins.
The best number to track is packaging cost per successfully delivered order.
A cheaper box provides little benefit if it creates more damage, replacements, or packing work.
Five Things Box Buyers Can Do Now
1. Compare the Same Specifications
Before switching suppliers, put the details side by side:
- Inside dimensions and dimensional tolerances.
- Box style and board construction.
- Stated strength rating.
- Number of boxes in the bundle.
- Delivered price, including applicable freight and fees.
Two listings can look almost identical while describing different products. Ask for missing specifications rather than assuming that matching dimensions mean matching performance.
2. Check What You Actually Paid Last Time
Keep a simple purchasing record with the date, exact product, quantity, delivered cost, and cost per box.
Save the original invoice and any written price-change notice.
This creates a useful purchasing history. It also makes it easier to spot when a bundle quantity, shipping charge, or specification has changed.
3. Review the Empty Space You Ship
Pack one of your common orders exactly as your team normally would.
Look at the unused space, the amount of filler, and whether the product can move. Then measure and weigh the finished parcel.
A better-fitting box may reduce material use or change the shipping quote. Check the actual carrier rate before counting any savings.
Keep enough room for the protection your product needs. A box that barely closes is not automatically a better choice.
4. Match the Package to the Product
Some items need a rigid corrugated box. Others may work in a padded mailer after appropriate evaluation.
For products that need structure and a clean presentation, explore white corrugated boxes. For suitable smaller products that need cushioning, compare bubble mailers.
Test the complete packed order before making a broad change. Consider crushing, bending, punctures, movement, and the condition customers expect on arrival.
5. Buy Around Demand—not a Headline
A federal investigation does not establish that a shortage is coming. It also does not guarantee lower prices.
Base your next purchase on expected orders, supplier lead times, available storage, and a reasonable reorder buffer.
Buying extra packaging can make sense when the quantities fit your business. Buying a year’s supply because a headline sounds alarming can leave cash sitting on a shelf.
What Happens Next?
The containerboard pricing investigation’s outcome remains uncertain. The disclosures reviewed for this article do not establish a timetable for price relief, a refund program, or a result for individual box buyers.
Your purchasing decisions can improve before those questions are answered.
Review your most-used package. Compare an equivalent quote. Check the delivered cost. Make sure the packaging still protects the product without unnecessary material or space.
You cannot control a federal investigation. You can know exactly what you are buying—and what each packed order costs.
Reporting reviewed November 5, 2026. Company statements and allegations are attributed above; the purchasing suggestions are ValueMailers’ practical analysis.
