The Complete Guide to Shipping less-than-truckload (LTL) in the U.S.

In full truckload (FTL) shipping, one truck is loaded at the shipper's dock and drives straight to the destination. LTL is the opposite: your handful of pallets shares a trailer with dozens of other shippers' freight, and it travels through a network of terminals rather than going door-to-door. Understanding that network explains nearly every rule, fee, and timing question that follows.

The hub-and-spoke flow

1. Local pickup. A city driver collects your freight along with everyone else's in the area and brings it to the origin service center (terminal).
2. Cross-dock & sort. At the terminal your pallets are unloaded, weighed, measured, sorted by destination, and re-loaded onto a line-haul trailer headed the right direction.
3. Line haul. Long-distance trailers, typically 48′ or 53′ vans, often run as doubles in many lanes, move freight terminal-to-terminal, usually overnight.
4. Relay / intermediate sorting terminals (breakbulk). Longer lanes pass through one or more intermediate sorting terminals (breakbulk), where freight is unloaded and re-sorted again, often adding a night per stop.
5. Destination terminal & delivery. At the final terminal your freight is loaded onto a local delivery truck for the last mile.

The benefit of this design is enormous: by consolidating many small shipments, carriers achieve scale that makes shipping a few pallets affordable. The trade-offs are equally built-in: your freight is handled 4-6 times, it moves on a fixed network schedule rather than on demand, and it cannot deviate from that schedule for a single shipment.

LTL is the right tool for a specific job. Using it for the wrong job is the most common (and most expensive) mistake shippers make.

For local metro moves where speed and real-time visibility matter, Mothership's Local Same-Day service keeps freight on one truck with no terminal stops. For shipments that outgrow standard LTL, the right mode is FTL.

The U.S. LTL market is highly concentrated: the top 25 carriers account for roughly 91% of a ~$53-billion market. These are large, regulated, public-company-scale operations. Knowing who they are, and how they position themselves, helps you understand the service you're buying. Revenue: SJ Consulting / Logistics Management, 2024, including fuel surcharge.

National  coverage across the lower 48.   Regional  concentrated in certain regions or specific lane types (e.g., expedited or inter-regional).

Not all coverage is created equal. The biggest predictor of pickup reliability, tracking accuracy and document speed is whether the carrier runs your shipment on its own assets the whole way.

There is no universally "better" answer, only the right answer for a given shipment. Mothership surfaces both so you can weigh speed and visibility against cost on every lane.

Liftgate capacity

A hydraulic tailgate (liftgate) is the platform on the back of a truck that raises and lowers freight when there's no loading dock or forklift. It's a piece of safety equipment with real limits, and those limits are physical, not negotiable.

If a single handling unit exceeds roughly 2,500 lbs or ~96″ in length, it likely won't clear a liftgate. Split it across pallets, arrange a dock/forklift, or plan a terminal pickup.

When can you use a liftgate?

Use this quick "if-this-then-that" check before booking, and tell us about both ends, since the answer can differ at pickup and delivery.

Pallet weight and dimensions

When a liftgate isn't needed (a dock or forklift is available at both ends), pallets can be heavier. Most LTL carriers will accept individual handling units up to roughly 4,000-10,000+ lbs depending on tariff, with total shipment weight commonly capped before volume rules apply. The practical guidance:

• Standard pallet footprint: 48″ × 40″. Keep freight stacked within the footprint. Overhang invites damage and reclassification.
• With a liftgate: keep each pallet at or under ~2,500 lbs and within the platform size above.
• Without a liftgate (dock/forklift): heavier pallets are fine, but any single piece over 8′ (96″) triggers an over-length charge, and pieces past 12′ climb steeply.
• Always cap pallet height so a non-stackable load doesn't get rated as if it fills the full trailer height (carriers often treat a 48″ non-stackable pallet as 96″ tall for cubic-capacity rating (cubing)).

Every LTL shipment is assigned a freight class (from 50 to 500) and one or more National Motor Freight Classification (NMFC) item codes maintained by the National Motor Freight Traffic Association (NMFTA). Class drives price: lower numbers (denser, sturdier, easier-to-handle freight) cost less; higher numbers cost more. Historically class balanced four factors: density, handling, how well it packs with other freight (stowability), and liability.

What changed in 2025

Effective July 19, 2025 (NMFTA Docket 2025-1), the classification system underwent its most sweeping revision in years, shifting roughly 2,000 commodities from commodity-based to density-based classification and replacing the old 11-tier density scale with a more granular 13-tier scale. A further docket (2026-1) is scheduled to begin rolling out in early 2026.

The practical upshot: density now drives class for most freight. Density is simply weight ÷ total cubic feet (pounds per cubic foot). The more accurately you measure and declare your freight, the more accurately it prices, and the less likely you are to be re-rated after the fact.

Write descriptions that prevent reclassifications

• Describe the actual commodity, not a vague label: "steel shelving brackets," not "parts" or "freight."
• Give precise, packaged dimensions and weight. Measure after palletizing and wrapping, including overhang.
• State stackability and packaging accurately; declaring non-stackable freight as stackable is a frequent dispute trigger.
• Include the NMFC code and class on the Bill of Lading when known. Mothership's quoting tools classify for you, so you generally don't need to look these up manually, but accurate dimensions and descriptions are still on you.

Extra freight services (accessorials) are charges for any service beyond standard dock-to-dock pickup and delivery. They aren't optional surprises. They're priced services the carrier must actually perform. The golden rule: declare every accessorial you'll need at booking. If a driver arrives without the right equipment or instructions, the result is a failed attempt, a redelivery fee, and a delay.

Appointments are delivery-only, and the carrier sets them

Two options cover timed deliveries, and they are not the same thing. Call before delivery is simply advance notice: the carrier phones ahead before arriving, but it is not a scheduled time. A delivery appointment is a set time the carrier arranges: it contacts the delivery location and books a slot that works for both the carrier and the receiver. There are no pickup appointments. And importantly, LTL carriers will not accept a pre-made appointment you arrange on the receiver's behalf. They set the appointment themselves. Request the appointment accessorial and let the carrier coordinate the time directly with your customer.

Delivering to Amazon (and other appointment-only docks)

Large fulfillment networks, Amazon fulfillment centers above all, accept freight by scheduled appointment only, and the carrier or broker books it, not you. They request a delivery slot through Amazon's Carrier Central portal using your shipment's references (purchase order (PO) / advance shipping notice (ASN) / Amazon reference number (ARN) and pallet count); Amazon confirms a date and time (often within about 24 hours) and issues an incoming shipment appointment (ISA) ID the driver must present to get into the yard. Miss the window, arrive late, or send mismatched details and the freight is turned away, forcing a new appointment plus storage and redelivery. The practical takeaways: build in extra lead time, give complete and accurate references at booking, and don't promise your customer a delivery date until the appointment is actually confirmed.

Can you approve accessorials at the time of delivery?

A common request is for the carrier to call or email for sign-off before performing an accessorial on site, the way a dedicated full-truckload (FTL) driver might wait for the go-ahead. In LTL this is not possible. The driver is running a fixed, sequenced route serving many shippers and cannot hold the truck while waiting for approval. If an accessorial is genuinely needed to complete the delivery, the carrier decides on the spot and performs it. It will not wait for your authorization first.

When approval is withheld or can't be reached in the moment, the outcomes are worse, not better. The driver either accrues wait time and detention, or takes the freight back to the terminal, where a failed-delivery fee and daily storage begin to add up (see Section 12-13). In practice, both of those routinely cost more than the accessorial itself. This isn't a Mothership rule. It is simply how the LTL network is built to operate.

Quotes are ZIP code to ZIP code (postal code). The address can still change the price

LTL rates are priced ZIP code to ZIP code. At quote time the carrier sees the postal codes, the freight class, and the dimensions, not the realities of the exact street address. So conditions that only surface on the ground can change the final price, or even whether the freight can be delivered at all: road weight limits that bar a full-size truck, a destination terminal that can only send a smaller truck, no liftgate where one is needed, or plain access problems: low-hanging trees, steep or curvy roads, a long dirt driveway. The remedy is the same as for accessorials: tell us everything you know about the delivery site up front, so the right equipment and service are priced in from the start instead of showing up as a rebill or a failed delivery.

LTL drivers run a daily rhythm dictated by the network: they deliver in the morning and pick up in the afternoon. A driver leaves the terminal with a full truck, empties it on the delivery route, and only then has room to collect new freight on the way back.

• Pickups are typically afternoon, after deliveries are done. Most carriers require a pickup to be requested by an early-afternoon cutoff, with a minimum ~2-hour ready window. Block out 4 hours to be safe.
• Deliveries generally occur during business hours, weighted toward the morning.
• Line haul runs overnight between terminals, and pickup/delivery operations run Monday-Friday; weekends generally aren't service days.

When a pickup or delivery attempt fails

Because each driver runs a tightly sequenced route, a wasted stop has a real cost, and it shows up as an added charge on your invoice (a rebill):

• Freight not ready at pickup. If the shipment isn't packaged, labeled, and staged when the driver arrives, the driver usually cannot wait. Doing so would jeopardize the rest of the route and that night's line haul. The stop is logged as a missed pickup, and a failed-attempt fee is billed.
• No one available to receive at delivery. If the driver arrives within the window and there's no one to accept the freight, or the site can't take it, the attempt fails. The freight returns to the terminal and a redelivery fee (see Section 13) is charged to send it out again.

Both are avoidable: stage freight before the window, confirm the receiver can accept it, and request a delivery appointment.

Standard LTL transit times are estimates expressed in business days, not guaranteed arrival times. They reflect how freight moves through a fixed network of terminals and line-haul schedules, and that network does not speed up for an individual shipment.

• The pickup day doesn't count. A 3-day transit clock starts the business day after pickup.
• Weekends and holidays aren't transit days. A 3-day estimate quoted on a Thursday typically delivers the following Tuesday.
• Rural lanes add time when the delivery terminal only services an area a few days a week.
• Need a date certain? Most national carriers offer guaranteed service (by a business day, sometimes by a time) on qualifying lanes for a premium.

Standard LTL pricing assumes your freight shares a trailer. When a shipment gets big enough to dominate trailer space, carriers switch to a different, much higher rate structure: volume / linear-foot / cubic-capacity pricing, because that space could have carried other paying freight.

Cross any of these and standard discounts evaporate; the shipment can re-rate at a steep premium. The reasoning is simple: a light, bulky load that eats 12 feet of deck but weighs little blocks the carrier from loading anything else there.

The split-shipment rule

Beyond the size of one shipment, there's a subtler trap. Do not hand over the freight to the carrier (tender) between the same origin-destination pair, on the same carrier, on the same day, if together it crosses the volume threshold. Carriers can (and do) combine same-lane, same-day shipments and re-rate the whole thing at volume pricing. If you have two same-day shipments on the same lane, split them across two carriers, or send the second only once the first is already in transit, so each hand-over (tender) stays within standard LTL.

LTL free wait time is short (often just 15 to 30 minutes), and for good reason. Each driver has a full route of other pickups and deliveries, and a single delay cascades down the line. Past free time, carriers charge detention (commonly billed per 15-minute increment or hourly).

Just as often, the driver simply cannot wait at all. If your freight isn't ready, the driver may have to leave to protect the rest of the route and that night's line-haul departure, resulting in a missed-pickup or redelivery fee rather than detention. This isn't the driver being difficult; their schedule is set by dispatch and the network.

Carriers allow only a short window of free storage at a terminal, commonly on the order of a day or two, before daily storage charges begin. The reason is structural: a cross-dock is engineered to move freight straight across from an inbound trailer to an outbound one on the other side of the dock. It is not a warehouse.

When freight has to be stored, it occupies the very limited dock floor the terminal needs to keep freight flowing, and it gets handled several additional times by dock staff, both of which the storage charge is meant to recover. Storage usually accrues when your customer can't accept delivery, an appointment can't be scheduled, or paperwork holds the freight.

Carriers re-weigh and re-measure on certified scales and automated dimensionalizers. That certificate is the legal proof of weight and dimensions.

The scaler is an hourly employee with no incentive to overstate size. Rebill patterns almost always start at packing, not at the scale. Carriers sell weight and space; undeclared extra space or weight gets re-rated.

Certified rebills are hard to overturn, but the window matters, and Mothership builds in protection.

• Mothership gives you 10 days to review and dispute a rebill before payment is required.
• Most other platforms bill you first and only then ask you to file a dispute. Mothership's pre-payment window keeps you in control.
• Carriers allow the legally permitted dispute window after payment. If you win, the amount is refunded.
• Winning requires evidence that contradicts the certified measurement: typically your certified scale ticket and packaged dimensions from shipping.

Liability is governed by the Carmack Amendment (U.S. freight-liability law) and is not full-value insurance. Released value is a dollar amount per pound (used goods can be $0.10/lb; new goods often ~$0.50 to $25/lb).

How a claim works

• Inspect and note at delivery. Check count and condition before signing and note damage specifically.
• Evidence to file: BOL, signed proof of delivery (POD), invoice, photos, and an itemized loss statement.
• Pay the freight charges in full (claims aren't processed until the freight bill is paid) and keep the damaged freight for inspection/salvage.

The legal clock

• File within 9 months of delivery (or expected delivery).
• Concealed damage: notify the carrier within 5 business days of delivery.
• The carrier must acknowledge within 30 days and pay, decline, or offer within 120 days, with status updates every 60 days thereafter.

LTL tracking is not real-time GPS. It's scan-by-scan status updates: pickup, terminal arrive/depart, and out-for-delivery events, typically updated only once or twice a day.

Ground events (see Section 19) are reported after they happen, often at end of day.

Unlike FTL and local delivery, LTL networks do not permit drivers to be contacted by, or to contact, shippers directly. Everything routes through carrier customer service.

That's how the industry is structured, not a Mothership limitation. You get one coordinator, the same carrier data, and a U.S. team to push issues through proper channels.

No broker or platform has more operational control over an LTL carrier than another. A missed pickup is on the road, not in the software. Two examples:

A reconsignment (diversion) changes the delivery address, or another material detail, after freight is moving. They are common, expensive, and delay-prone.

Freight isn't sitting still (Section 2). It is flowing through terminals on a fixed schedule. Redirecting it means the carrier has to:

1. Locate and hold the shipment at whatever terminal it has reached.
2. Re-rate the new lane: the price changes for the new destination, plus a reconsignment fee.
3. Re-route it onto the next available line haul, which may not depart until the next scheduled run.

The transit clock restarts from the diversion, and cost can climb past the original quote. Confirm the final delivery address before you book.

Missing receiver contact information is a common cause of delayed deliveries, and easy to prevent.

The destination terminal often needs the receiver for appointment, hours, liftgate, limited access, or directions. If no one answers, freight waits at the terminal (storage, Section 13).

Hazmat only moves when paperwork is complete. Missing or inaccurate info (common with overseas shippers new to U.S. rules) stops a shipment and creates safety and legal exposure.

At booking you must provide:

• The proper shipping name, UN/NA number, hazard class / division, and packing group.
• A hazmat-compliant Bill of Lading (BOL) with a 24-hour emergency-response phone number.
• Correct labels, markings, and placards, and packaging that meets 49 CFR.
• The current Safety Data Sheet (SDS).

Not every carrier or lane accepts every hazard class, and a hazmat fee applies. Declare hazmat up front, every time.

Restricted commodities: alcohol and nicotine

Not classic hazmat, but restricted. The wrong carrier gets freight rejected at pickup or pulled mid-network.

• Alcohol (beer, wine, spirits): Not every carrier is licensed across all 48 states. Limit options to carriers that accept it.
• Nicotine, vapes and tobacco: Many carriers blacklist nicotine freight, including coils, disposables, and packaging. If found, they pull it and require recovery, plus fees.

Limit your quote to carriers that accept the commodity, every time.

Trade-show freight runs on different rules than ordinary business delivery. Two paths:

Expect an exhibitor kit, a general contractor, and drayage / material-handling billed by weight (so a certified weight matters). Target dates are rarely negotiable. The advance warehouse is almost always the right LTL call.

It can seem like going direct to a carrier should be cheaper. In practice, the opposite is true, for a structural reason: aggregation.

Mothership pools the freight of a very large number of shippers. That volume is far larger than any one business brings a carrier. That scale buys two things you can't get alone:

• Deeper discounts. Pre-negotiated tariffs built on aggregate volume beat the rates an individual shipper can command.
• Better service and accountability. If a carrier causes a problem, the cost of losing Mothership's book of business dwarfs the cost of losing any one shipper, so issues get prioritized.

The same logic applies across LTL and FTL: a broker with real scale gets you better prices and better service than going direct, with none of the long-term contracts. That's the whole idea behind Mothership.

Run this list before you book, and share the relevant parts with your customer.

• Measure and weigh precisely after palletizing and wrapping (including overhang) to prevent reclassifications and rebills.
• Describe the commodity accurately and note stackability; let the platform handle class/NMFC.
• Declare every accessorial up front: liftgate, residential, limited access, inside delivery, delivery appointment, call-before.
• Confirm the final delivery address before booking. Mid-transit reconsignments are slow and costly (Section 20).
• Give complete receiver contact info (name, phone, email) so the terminal can schedule and deliver (Section 21).
• Ship on the Mothership BOL so tracking flows back to you and the quoted rate is honored.
• Declare hazmat fully: UN number, class, packing group, SDS and emergency contact (Section 22).
• Confirm dock/forklift availability at both ends; add a liftgate if either lacks one.
• Keep shipments within standard LTL: up to 10 pallets (and roughly 12 linear feet / 750 cubic feet); split same-lane, same-day hand-overs (tenders) so they don't combine and re-rate. Larger freight moves as FTL.
• Stage freight before the pickup window opens; request pickups early with a wide window.
• Set transit expectations in business days. Pickup day doesn't count, weekends aren't transit days; choose guaranteed service when a date is critical.
• Expect scan-by-scan status updates, updated once or twice a day. The platform shows the same data the carrier has.
• Inspect and note at delivery before signing; keep the Bill of Lading, proof of delivery, invoice and photos for any claim.
• Consider FreightProtect whenever cargo value exceeds standard carrier liability.

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