Have you ever shipped a lightweight item in a large box and been shocked by the price? You were likely charged based on "Dimensional Weight" (DIM weight). Understanding this concept is crucial for saving money on shipping.
This article is part of our Ultimate Guide to Shipping & Packing.
What is Dimensional Weight?
Shipping carriers (UPS, FedEx, USPS) have limited space on their trucks and planes. If you ship a 1-pound pillow in a massive box, it takes up space that could have held a 50-pound box. To account for this, carriers calculate the "dimensional weight" based on the size of the box (Length x Width x Height / DIM Divisor). You are charged for whichever is greater: the actual weight or the dimensional weight.
How to Avoid DIM Weight Charges
The easiest way to avoid overpaying is to use the smallest box possible that still allows for 2 inches of padding around your item. Don't reuse an oversized Amazon box for a small item, or you will pay a massive premium.
At PostalAnnex, we stock over 50 different box sizes and can even custom-cut boxes to fit your item perfectly, ensuring you never pay more for shipping than you have to.
