LTL Freight Weight Brackets
LTL (Less-Than-Truckload) carriers typically use defined weight brackets or weight breaks when calculating freight rates. These brackets are standardized ranges of shipment weight, and moving from one bracket to the next can significantly impact your per-pound shipping cost.
The standard LTL weight brackets used by most carriers are:
| Weight Range (lbs) | Bracket | Typical Shipment Type |
|---|---|---|
| 1 – 149 lbs | Under 150 | Parcel/small package; often better as parcel |
| 150 – 499 lbs | Light LTL | Standard LTL, single piece or small pallet |
| 500 – 999 lbs | Mid LTL | Single pallet, moderate weight |
| 1,000 – 1,999 lbs | Heavy LTL | Multiple pieces, one to two pallets |
| 2,000 – 4,999 lbs | Volume LTL | Multiple pallets; consider volume quotes |
| 5,000 – 9,999 lbs | Volume/Partial | Large LTL; partial truckload often better |
| 10,000 – 19,999 lbs | Partial TL | Partial truckload territory |
| 20,000+ lbs | Full Truckload | Full truckload (FTL) rates apply |
Our weight class calculator helps you identify which bracket your shipment falls into, allowing you to make informed decisions about the best shipping method and when to consider alternative services like volume LTL or partial truckload.
Weight vs. Freight Class
It's important to understand that weight and freight class are two different — but equally important — factors in LTL pricing. Freight class (determined by density) defines the type of freight. Weight defines the quantity. Together, they determine the final freight rate.
The LTL pricing formula works like this: Carrier Rate = Class Rate × Weight (per 100 lbs). This is why both freight class and weight must be accurate. An error in either will result in an inaccurate quote — and potentially a freight bill adjustment after delivery.
For complete freight rate calculation, use our main freight class calculator which accounts for both freight class and provides the density-based classification needed for accurate LTL quotes.
Understanding CWT (Per-Hundredweight) Pricing
LTL carriers price freight using CWT (Cost per Hundredweight), which means the rate is quoted per 100 pounds of freight. To calculate your total freight cost, carriers multiply the CWT rate (based on freight class) by the shipment weight divided by 100.
For example, if the CWT rate for Class 70 is $28.00 and your shipment weighs 500 lbs:
- Cost = $28.00 × (500 ÷ 100) = $28.00 × 5 = $140.00 base rate
Note that this is the base rate before fuel surcharges, accessorial fees, and other carrier charges are applied. Use our price per lb calculator to analyze cost efficiency across different weight and class combinations.
How Weight Breaks Affect LTL Rates
An important — and often counterintuitive — aspect of LTL pricing is the weight break. This occurs when shipping a heavier weight actually costs less per hundredweight than shipping a lighter weight. Carriers incentivize heavier shipments because they're more efficient to process.
This means that in some cases, adding weight to your shipment (by consolidating multiple orders) can actually reduce your per-unit shipping cost, even though the total bill increases. This is particularly relevant for businesses that ship moderate volumes and have some flexibility in how they consolidate orders.
The weight break concept is one of the key reasons why freight logistics professionals use weight analysis tools and our weight class calculator to optimize shipping decisions rather than simply booking each shipment at face value.
LTL vs. FTL: Weight Thresholds
LTL shipping is designed for freight that doesn't require an entire truck. The practical weight range for LTL is typically between 150 lbs and 15,000 lbs. Below 150 lbs, parcel shipping (UPS, FedEx, USPS) is usually more economical. Above 10,000–15,000 lbs, full truckload (FTL) or partial truckload pricing often becomes more competitive.
Volume LTL is a middle ground for shipments in the 5,000–20,000 lb range that don't fill an entire trailer. Volume LTL carriers negotiate rates based on the space used rather than the standard class-based tariff, making it a cost-effective option for heavy, dense shipments.
Weight Calculator FAQ
Understanding LTL Weight Breaks in Detail
LTL pricing uses a tiered system where the cost per hundredweight (CWT) decreases as total shipment weight increases. This structure creates "weight breaks" — specific weight thresholds where your per-pound cost drops significantly. Understanding these breaks is essential for smart freight budgeting.
A typical LTL tariff might show CWT rates like this: 500 lbs = $42.00/CWT, 1,000 lbs = $38.00/CWT, 2,000 lbs = $31.00/CWT, 5,000 lbs = $24.00/CWT. This means a 900 lb shipment at $38.00/CWT costs $342. But a 1,000 lb shipment at the lower $31.00/CWT rate (if the next break is at 1,000 lbs) would cost just $310 — less than the lighter shipment. This is the weight break phenomenon, and it's why experienced shippers always check the cost at the next weight break before booking.
Our weight class calculator helps identify which LTL weight bracket your shipment falls into, making it easy to spot potential weight break savings before booking with your carrier.
Freight Weight vs. Dimensional Weight
In LTL freight, carriers primarily use actual weight (from a scale) to price shipments. This is different from the parcel world, where UPS, FedEx, and USPS often use dimensional (DIM) weight — a calculated weight based on package dimensions using a divisor.
However, in LTL, weight and dimensions both matter — but through the freight class system rather than DIM weight. Your dimensions determine the volume, which (combined with actual weight) determines density, which determines freight class. The freight class then gets applied as a multiplier to the base rate. So while LTL doesn't use DIM weight directly, large, light shipments are penalized through a higher freight class rather than a higher billable weight.
This distinction matters when shippers with parcel shipping experience move to LTL for the first time. Don't look for a DIM weight in LTL quotes — look at the freight class. Use our density class calculator alongside this weight class calculator for a full picture.
Carrier Reweigh Fees and How to Avoid Them
LTL carriers have the right to reweigh your shipment after pickup. If the carrier's certified scale produces a weight different from your declared weight, they will invoice a correction — along with a reweigh fee that typically ranges from $15–$35 per shipment, plus any rate adjustment from the revised weight.
Common causes of reweigh discrepancies include: not including pallet weight in declared weight (a standard pallet weighs 35–60 lbs), forgetting to include stretch wrap or banding, and estimating weight rather than using a certified scale.
Best practice: Always use a certified floor scale or pallet scale to weigh your complete shipment — product + packaging + pallet + wrap — before entering values into any freight weight calculator. The extra 5 minutes of weighing can save significant reweigh fees and billing disputes.