We see this every week. The good news is that almost all of it is preventable, and most of it comes down to a tape measure and a scale.
Reclass and reweigh, in plain terms
A reclassification ("reclass") happens when a carrier inspects your freight after it's moving and decides the freight class you declared at booking was wrong. They re-rate the shipment at the higher class and tack on an inspection charge.
A reweigh is simpler. The carrier runs your pallet across a certified terminal scale, finds the weight is off by more than their tolerance — usually 200 lbs or 5%, whichever is smaller — and re-rates based on the real number.
Both are legitimate. Carriers aren't trying to nickel-and-dime you; they're billing for the space and weight that actually moved. The problem is that the correction lands after the fact, when you've already quoted the job to your customer.
What this actually costs
It adds up faster than people expect:
- A reclass surcharge typically runs 10–20% above your booked rate
That last number is the one that gets attention. If you're spending six figures a year on LTL, that's real money walking out the door over measurements.
Why freight class trips people up
LTL pricing runs on the NMFC system — 18 classes, from 50 (cheap, dense freight) up to 500 (light, bulky, or high-risk). Four things decide where your freight lands:
1. Density — pounds per cubic foot, and the biggest driver by far
Density is where most mistakes live, and the math isn't hard:
Take your weight and divide it by the cubic feet. To get cubic feet, multiply length by width by height in inches, then divide by 1,728. A 48x40x48 pallet at 400 lbs works out to about 7.5 lbs per cubic foot — and that number, not your gut, is what should pick the class.
The trap is that people declare a class from memory or from an old BOL, the carrier measures it for real, and the two don't match.
Don't forget dimensional weight
Even when your class is right, dimensional weight can change the bill. Carriers charge for the room a shipment takes up, not just what it weighs, because a trailer fills up by space long before it hits a weight limit.
The calculation is straightforward: multiply length by width by height, divide by the carrier's DIM divisor, and compare that figure to the actual weight. Whichever is greater becomes the billable weight. A light shipment in an oversized box can get billed as if it were far heavier — which is exactly why over-packaging quietly costs you money.
How to keep the quote and the invoice in agreement
None of this requires fancy software. It requires discipline at the dock.
Measure the pallet, not the product
Put the tape on the loaded, wrapped pallet — including the skid and any overhang — and round up to the nearest inch. The carrier measures the whole thing; you should too.Weigh on a certified scale
A forklift dial gauge is fine for the warehouse, but it's not certified for billing. The variance it introduces is one of the most common reweigh triggers. A certified pallet scale at origin pays for itself fast.Run the density before you declare
Do the density math before you pick a class, every time. Thirty seconds at the desk beats a reclass three weeks later.Audit your invoices on a schedule
Pull your LTL invoices every 90 days and sort the accessorials. Patterns jump out quickly — a specific lane, a specific product, a specific shift — and once you can see the pattern, you can fix the cause instead of paying the symptom.When the fee is wrong, dispute it
Carriers aren't infallible, and you usually have about 30 days to push back. If a charge looks off:
1. Request the inspection report — measured dimensions, weight, photos, and the NMFC codes they used 2. Pull your origin paperwork: the BOL, packing list, certified scale ticket, and dock photos 3. File through the carrier's portal with that documentation attached 4. If it's denied, escalate to your regional account manager
Disputes succeed when you can prove the shipment was within tolerance at origin. That's the whole reason to document it on the way out the door — the photo you take at the dock is the evidence you'll wish you had later.
Where we come in
At Chainlink Solutions, we catch class and dimension problems before the freight moves, not after the invoice lands. We help our customers set up accurate, repeatable measuring at origin, audit their LTL spend for reclass and reweigh patterns, and dispute the charges that don't hold up.
If your LTL invoices keep coming in higher than your quotes, there's almost always a fixable reason. Reach out and we'll take a look at your numbers.
