When should you use LTL instead of FTL?

Pallet count alone does not decide whether a shipment should stay on Standard LTL or move to another mode. Freight class, cargo protection limits, the linear foot rule, and detention exposure can each signal that it’s time to look at Volume LTL, Partial Truckload, or FTL instead. This guide helps you recognize that turning point and gives you a worked example showing exactly where the numbers shift.

TL;DR: Is Standard LTL still the right call?

• Standard LTL is generally the right choice for shipments under roughly 12 linear feet, up to about 6 pallets and 5,000 lbs, moving through a normal dock with reasonable turnaround.
• Past roughly 12 linear feet, carrier options start to narrow, because each LTL carrier sets its own linear foot threshold. Standard LTL can still be competitive up to roughly 20 feet when the lowest-cost carriers on the lane have thresholds above the shipment’s footage.
• Quote Standard LTL alongside Volume LTL, Partial Truckload, or FTL once a shipment approaches 12 linear feet, carries a high freight class, has meaningful value at risk, or is headed to a location with slow dock turnaround.
• Price alone shouldn’t drive the decision, since a cheaper Standard LTL quote can lose its advantage fast once linear feet, liability, or detention exposure are factored in.

When is Standard LTL generally the right fit?

Less-than-Truckload (LTL) shipping applies once a shipment no longer justifies reserving a full trailer. Standard LTL specifically fits shipments that stay comfortably under roughly 12 linear feet of trailer space. Full Truckload (FTL) shipping, by contrast, is built for freight that fills, or nearly fills, a standard 53-foot dry van trailer.

Mode	Standard weight	Standard pallets	Standard linear feet
Standard LTL	Up to roughly 5,000 lbs	Up to 6 pallets	Under 12 linear feet (up to about 20 with some carriers)
Volume LTL or Partial Truckload	Roughly 5,000 to 15,000 lbs	6 to 18 pallets	12 linear feet and up
Full Truckload	15,000 to 44,000 lbs	Up to 26 pallets	Fills the trailer

These ranges reflect NTG’s own published Volume LTL, Partial Truckload, and Full Truckload guidance, and align with the roughly 12-linear-foot reference point the National Motor Freight Traffic Association (NMFTA) uses to describe standard LTL shipments. The linear foot threshold each carrier enforces varies, as the next section explains.

Rule of thumb: if your shipment approaches 12 linear feet, occupies six or more standard pallets, or has unusually high value, compare Standard LTL, Volume LTL, Partial Truckload, and FTL before booking.

When Standard LTL stops being the lowest-cost option: the linear foot rule

This is the single biggest reason a shipment that looks like an easy Standard LTL call ends up costing more than expected. Each LTL carrier sets its own linear foot threshold in its tariff. Once a shipment exceeds that threshold, the carrier applies the linear foot rule: it’s commonly rated at 1,000 lbs per linear foot, regardless of actual weight. The exact per-foot weight varies by carrier.

A shipment that only weighs 2,000 lbs but occupies 12 linear feet can get billed as if it weighs 12,000 lbs by a carrier whose threshold is below 12 feet. This rule exists because LTL carriers sell trailer space to multiple shippers on the same load, so a low-density shipment that eats up floor space costs the carrier more than its actual weight suggests.

In NTG’s carrier partner network, linear foot thresholds start at 11 feet, and most carriers set theirs between 14 and 20 feet. More linear footage means fewer carriers will price a shipment at Standard LTL rates. When the lowest-cost carrier on a lane has a threshold below a shipment’s footage, that carrier re-rates the shipment, and the best available Standard LTL price goes up.

A carrier’s threshold does not determine its price. Freight up to 19 or 20 feet can still get competitive Standard LTL rates when the lowest-cost carriers on the lane have thresholds above the shipment’s footage.

Practical takeaway: once your shipment approaches 12 linear feet, don’t book Standard LTL on a single quote, but don’t rule it out either. Run the linear feet calculation below, confirm each quoted carrier’s linear foot threshold, and compare Standard LTL with Volume LTL and Partial Truckload before booking.

How to calculate your linear feet before you book?

For standard 48-by-40-inch pallets loaded two abreast (a loading method called pinwheeling), use this formula:

(Total pallets ÷ 2) × pallet length in inches ÷ 12 = linear feet

A 6-pallet shipment of standard 48-inch pallets works out to (6 ÷ 2) × 48 ÷ 12 = 12 linear feet, already past the lowest carrier thresholds. Running this calculation before booking is the fastest way to know whether Standard LTL is still your cheapest option or whether it’s time to request a Volume LTL or Partial Truckload quote alongside it.

Operational factors that can change the LTL decision

Two non-freight factors matter as much as pallet count when deciding whether Standard LTL still fits.

• Dock and warehouse space. Limited receiving space can push a shipper toward LTL even when a shipment could technically justify FTL pricing.
• Order volume and scalability. Shippers with frequent, smaller orders often use LTL by design, moving freight without waiting to accumulate a full truckload.

Practical takeaway: if either factor applies to your operation, Standard LTL may remain the right call even for shipments that sit close to the size threshold.

When shipment value should change your mode decision

Under carrier tariffs, Standard LTL liability is capped by freight class and weight, not by the shipment’s actual value. A higher freight class can carry a lower per-pound liability cap than a lower, denser class of the same size. Automatic carrier coverage can fall well short of a full loss on higher-value freight as a result. Full-value or declared-value cargo insurance closes that gap and is available on top of a carrier’s baseline liability.

What this means for you: in NTG’s experience, standard carrier liability generally tops out well below full replacement value. Additional coverage options are available up to roughly $100,000 depending on the shipment.

Practical takeaway: verify the carrier’s liability cap against your shipment’s actual value before booking Standard LTL. If the gap is significant, that’s a reason to price out Volume LTL, Partial Truckload, or FTL alongside it, not just add insurance.

See NTG’s freight class explainer for how NMFC codes determine class.

When dock delays make Standard LTL more expensive than it looks

The free time before extra charges apply is dramatically shorter for LTL than for FTL, which is a real factor in whether Standard LTL stays cost-effective for a given receiver. FTL carriers generally operate on an industry-standard 2-hour free time window before detention charges apply.

LTL carriers work on a far tighter clock: under standard LTL tariff terms, a shipment only qualifies for base pricing at a “standard business location” if loading or unloading takes no more than 15 minutes from the time the truck arrives to the time it leaves. A shipment that runs past that window can trigger accessorial charges well before an FTL shipment would even approach its 2-hour grace period.

This is the real driver behind higher detention exposure on Standard LTL: it isn’t that the hourly detention rate is higher; it’s that the clock starts far sooner. Locations that commonly cause slower dock turnaround include facilities without dedicated freight-receiving staff, congested urban docks, and receivers requiring strict appointment scheduling.

Practical takeaway: slow receivers can eliminate Standard LTL’s savings through additional charges. If a shipment is headed to a location with a known slow-dock history, price Volume LTL, Partial Truckload, or FTL alongside your Standard LTL quote.

Other operational factors worth a quick check

• Transit time. FTL moves direct from pickup to delivery. LTL travels through a network of stops and terminal transfers, so delivery windows are generally estimates. If delivery timing is critical, compare FTL before booking.
• Handling and damage exposure. LTL freight is loaded and unloaded multiple times before final delivery. FTL freight is loaded once and travels sealed. If your freight is fragile or hard to repackage, weigh that extra handling risk against LTL’s lower price.
• Appointment requirements. LTL commonly runs on broader first-come, first-served pickup and delivery windows. FTL carriers can generally commit to firmer appointment times. If your receiver requires a hard appointment window, confirm LTL can meet it before booking.
• Dock access. A receiver without a loading dock or forklift usually rules out FTL by default, since most FTL trailers are not equipped with liftgates. LTL carriers commonly offer liftgate service as an add-on. No dock at the receiver usually means LTL by default, regardless of shipment size.

Worked example: when Standard LTL pricing changes

A 6-pallet shipment at 12 linear feet. Take a shipment of 6 standard 48-inch pallets weighing 2,000 lbs total, a light but bulky load such as retail displays or packaged furniture. Using the formula above, this shipment occupies 12 linear feet, which exceeds some carriers’ linear foot thresholds but not others.

	Carrier threshold below 12 ft	Carrier threshold above 12 ft
Actual weight	2,000 lbs	2,000 lbs
Linear feet occupied	12 ft	12 ft
Linear foot rule applies?	Yes	No
Billed weight	12,000 lbs (12 ft × 1,000 lbs per linear foot)	2,000 lbs, rated on actual weight and freight class

With a low-threshold carrier, that’s a six-fold difference between what the shipment actually weighs and what it can get billed as. Once billed weight jumps that far past actual weight, Standard LTL pricing is no longer working in the shipper’s favor the way it would for a smaller, denser load. With a carrier whose threshold sits above 12 feet, the same shipment still rates as ordinary Standard LTL freight.

Which outcome you get depends on whether the lowest-cost carriers on your lane have thresholds above your shipment’s footage. That’s why this is the point to request Standard LTL quotes from more than one carrier, alongside Volume LTL, Partial Truckload, and FTL quotes, rather than assuming the first Standard LTL quote holds.

Exact dollar costs depend on the carrier, lane, and current market rates, so this example intentionally stops at the weight math rather than inventing a rate. NTG’s Volume LTL and Partial Truckload guide covers how that middle-ground pricing works once you’re ready to compare.

Decision checklist: is Standard LTL still right for this shipment?

Before booking Standard LTL, confirm the following:

• Linear feet. Calculated using the formula above. If the shipment is near or past 12 feet, checked against each quoted carrier’s linear foot threshold.
• Freight class. Check and confirm with NTG’s freight class explainer or density calculator, not assumed.
• Shipment value. Checked against the carrier’s standard liability cap, with additional coverage arranged if needed.
• Dock conditions. Receiver has a working dock or forklift, or liftgate service has been requested.
• Appointment requirements. Receiver’s scheduling needs can realistically be met by LTL’s broader delivery windows.
• Whether Volume LTL, Partial Truckload, or FTL should also be quoted. If any of the above are borderline, get a comparison quote before booking Standard LTL by default.

Frequently asked questions

What size shipment counts as LTL versus FTL?

Standard LTL generally fits shipments under about 12 linear feet, up to roughly 6 pallets and 5,000 pounds. In NTG’s carrier network, most carriers set linear foot thresholds between 14 and 20 feet, so freight between 12 and 20 feet is worth quoting as Standard LTL, Volume LTL, and Partial Truckload. FTL is built for freight that fills, or nearly fills, a 53-foot trailer.

Is LTL or FTL cheaper?

LTL is usually cheaper per shipment at small sizes, since you pay only for the trailer space used. That price advantage can shrink or disappear once a shipment exceeds a carrier’s linear foot threshold, since that carrier can bill well above the shipment’s actual weight. Because thresholds vary by carrier, quoting several Standard LTL carriers can help preserve that advantage.

What are the disadvantages of LTL shipping?

LTL shipments are handled and transferred more often than FTL shipments, raising damage risk. Delivery windows are less predictable. Automatic cargo liability coverage is more limited than many shippers expect, and free time before accessorial charges apply is much shorter than FTL’s.

Does LTL freight come with cargo insurance?

LTL carriers include automatic liability coverage capped by freight class and weight, not declared value. Shippers with higher-value freight often add declared-value or full-value cargo insurance to close that gap.

Can my LTL shipment get reclassified after pickup

Yes. LTL carriers re-verify weight and dimensions at the origin terminal. A mismatch with the original booking can trigger a reclassification and a rate adjustment.

What’s the difference between LTL and Volume LTL or Partial Truckload?

Volume LTL and Partial Truckload sit between Standard LTL and Full Truckload, generally for shipments of 6 or more pallets that don’t yet need a full trailer.