How LTL freight pricing actually works

Last updated: July 16, 2026 · Written by the GET Express freight desk

An LTL rate comes down to five things: freight class, total weight, the lane, any accessorials, and a fuel surcharge. Get all five right at booking and your invoice should match your quote almost exactly. Get one wrong, usually the class or the weight, and the carrier can rebill you after pickup, which is the single most common reason a shipper's invoice doesn't match what they were quoted.

Freight class and weight: the two numbers that matter most

Freight class is the biggest lever in an LTL rate. It's a number from 50 to 500, set by the National Motor Freight Classification (NMFC) system, and it's driven mainly by density: how much your shipment weighs per cubic foot. Dense, compact freight gets a low class and a cheaper rate. Light, bulky freight gets a high class and costs more, because it takes up trailer space without adding much weight.

Total weight is the second input, and it does more than just add up. LTL carriers price freight in weight bands, so your total weight can shift which pricing tier you land in, separate from what your class already says. That's part of why two shipments in the same class, at different total weights, don't scale in price the way you'd expect from simple math. It's also why an accurate scale weight at booking matters as much as an accurate class.

The lane and the fuel surcharge: what the market adds

The lane, your origin-to-destination pair, is the third input, and carriers don't price every route the same. A lane with heavy freight volume and several competing carriers tends to price lower, because trucks are already running that route and want freight to fill space that would otherwise go back empty. A lane with thin volume or few carriers costs more, because a truck may have to make a special trip or run the return leg empty.

On top of the base rate, every LTL shipment carries a fuel surcharge, a separate line tied to a national fuel price index that moves as diesel prices move. It's standard practice across the entire LTL industry, applied by every carrier, not a markup specific to one broker or one shipment. Because it floats, the fuel surcharge is the one piece of your rate that can genuinely change between the day you get a quote and the day the freight actually ships.

Why your invoice can land on a different number than your quote

A quote is only as accurate as the weight, dimensions, and class it's built on. Once a shipment is picked up, it typically moves through a carrier terminal, where the carrier can put it on a certified scale and re-measure it against what was declared at booking. This step, often called a reweigh and inspection, is standard practice across the LTL industry. It isn't a penalty and it isn't specific to one carrier.

If the actual weight, dimensions, or class don't match the booking details, the carrier corrects the invoice to reflect what they actually found. This is the single most common reason a quote and an invoice don't match, and it's also the most preventable one. The fix happens before pickup, not after.

Accessorial charges: the add-ons that cost extra

Standard LTL service is dock-to-dock: the carrier picks up at a shipping dock and delivers to a receiving dock, nothing more. An accessorial is any charge for a service beyond that standard flow. None of these are hidden fees. They're named services that cost extra because they take the driver and the truck outside their normal routine.

The common ones show up on almost every shipment that isn't a straightforward dock-to-dock move. A liftgate, a hydraulic platform on the back of the truck, is needed when there's no loading dock at pickup or delivery. Residential delivery costs more because a house isn't built for a 53-foot trailer or a dock plate. Inside delivery applies when freight has to go past the threshold instead of stopping at the curb or the dock. Limited-access delivery covers locations like construction sites, schools, or storage facilities. Appointment scheduling applies when the receiver needs a set delivery window instead of a standard delivery attempt.

How to keep your quote and your invoice the same

Most of the gap between a quote and an invoice comes down to three things you control before the truck ever shows up.

Declare accurate weight and dimensions. A rounded-off guess is how a routine reweigh turns into a rebill. Put the shipment on a scale and measure it instead of estimating.

Get your freight class confirmed instead of guessing at it. If you're not sure what class your freight falls under, ask before you book, not after the invoice shows up with a different number on it.

Flag every accessorial you'll actually need up front. If delivery is residential, if there's no dock, if the receiver needs an appointment, say so at booking. A carrier that finds out at the delivery truck is a carrier that bills for it afterward, and by then there's nothing to negotiate.

Handled up front, all three take a few extra minutes at booking. Get a quote and we'll confirm class, weight, and accessorials with you before anything ships, not after.