Shipping terms are the standard words carriers, sellers and buyers use to describe how a package or freight shipment is priced, labeled, moved, tracked and cleared through customs. The ones that matter most for everyday shippers fall into eight groups: rates and pricing, weights and measurements, labels and documents, tracking and delivery, carrier services, freight, customs and international trade, and packaging.
This page is the overview of those eight groups, with the handful of terms in each that change what you pay or when a package arrives. When you need a single word defined quickly, the alphabetical shipping terms and definitions A–Z glossary lists each term on its own, and the shipping terms glossary A–Z index links every glossary article on the site.
What Does This Shipping Terms Guide Cover?
- Which shipping terms affect what you pay?
- Which weight and measurement terms do carriers use?
- Which label and document terms should you know?
- What do tracking and delivery terms mean?
- Which carrier service terms come up most?
- Which freight and LTL terms matter?
- Which customs and international shipping terms matter?
- Which packaging terms affect shipping?
Which Shipping Terms Affect What You Pay?
Pricing terms explain why two packages of the same weight can cost very different amounts. A carrier’s price is built from a base rate for the service, zone and billable weight, plus any surcharges that apply to that shipment.
- Base rate: the published price for a service, zone and weight before surcharges or discounts.
- Zone: a number that represents the distance between the origin and destination ZIP codes. USPS and UPS domestic zones run from 1 (local) to 8 (farthest in the contiguous U.S.), with higher zones for Alaska, Hawaii and territories.
- Surcharge (also called an accessorial): an extra charge for a specific condition, such as a residential delivery, a remote ZIP code, a package that needs additional handling, fuel, or a corrected address.
- Residential vs. commercial delivery: UPS adds a residential surcharge to homes, including businesses run from a home, while USPS does not price residential and business addresses differently.
- General rate increase (GRI): the annual price change a carrier announces, usually expressed as an average percentage across its services.
- Shipping and handling: the amount a seller charges a customer, which covers postage plus the cost of packing materials and labor.
The guide to shipping and handling charges and how to reduce them explains how sellers set that customer-facing number. To see the actual carrier price for a package, compare live UPS and USPS options in the ParcelPath rate calculator.
Which Weight and Measurement Terms Do Carriers Use?
Carriers charge by billable weight, which is the greater of a package’s actual weight and its dimensional weight. That single rule is why a large, light box can cost more to ship than a small, heavy one.
- Actual weight: what the package weighs on a scale, rounded up to the next whole pound by UPS and USPS.
- Dimensional (DIM) weight: length × width × height in inches, divided by a DIM divisor. UPS uses 139 for daily rates, and USPS moved from 166 to 139 on July 12, 2026 for Priority Mail Express, Priority Mail, USPS Ground Advantage and Parcel Select Destination Entry parcels larger than 1 cubic foot (1,728 cubic inches).
- Rounding: UPS rounds every fractional inch up to the next whole inch, and since July 12, 2026 USPS also rounds each measurement up.
- Girth: the distance around the package’s thickest part, calculated as 2 × width + 2 × height. Length plus girth determines whether a package is oversize.
- Size and weight limits: UPS accepts packages up to 150 lb, 108 inches long and 165 inches in length plus girth. USPS accepts up to 70 lb, with a 108-inch length-plus-girth limit for most services and 130 inches for USPS Ground Advantage.
Measuring correctly starts with knowing which side is which, and the guide on how to read dimensions (length × width × height) walks through it. If you don’t own a shipping scale, the guide to how to weigh packages at home covers bathroom-scale and kitchen-scale methods that are accurate enough to buy a label.
Which Label and Document Terms Should You Know?
Label and document terms describe the paperwork that travels with a shipment, and each document has a different job. Mixing them up is a common reason for delays, especially on international and freight shipments.
- Shipping label: the carrier label with the sender and recipient addresses, the service, a barcode and the tracking number.
- Packing slip: a list of the items in the box, without prices, used by the recipient to check the order is complete.
- Commercial invoice: the document customs uses to value an international shipment, listing contents, value, country of origin and tariff codes.
- Bill of lading (BOL): the contract and receipt between a freight shipper and carrier, used for LTL and truckload shipments.
- Address verification: checking a delivery address against carrier or USPS address data before printing a label, which avoids address-correction charges and returned packages.
The packing slip guide explains what to include and where it goes in the box, and the steps in how to verify an address before you ship show how to confirm a destination with free USPS and UPS tools.
What Do Tracking and Delivery Terms Mean?
Tracking terms are the status messages a carrier shows as a package moves through its network. Most follow the same sequence, from the label being created to the final delivery scan.
- Label created / pre-shipment: the shipper has bought a label, but the carrier hasn’t scanned the package yet.
- Accepted or picked up: the first physical scan, when the carrier takes possession.
- In transit: the package is moving between facilities in the carrier’s network.
- Out for delivery: the package is on the local delivery vehicle for that day.
- Delivery exception: something prevented the planned delivery, such as a bad address, weather, or no one available to sign.
- Last-mile delivery: the final leg from the local facility to the recipient’s door.
- Signature confirmation: a service that requires someone at the address to sign for the package.
The roundup of package tracking services compares the carrier tools and apps you can use to follow a shipment.
Which Carrier Service Terms Come Up Most?
Service terms describe how fast and how a package moves. The same idea often has a different name at each carrier, so it helps to know the general term behind the brand name.
| General term | What it means | USPS example | UPS example |
|---|---|---|---|
| Ground | Packages move by truck on a business-day schedule | USPS Ground Advantage (2–5 business days) | UPS Ground (1–5 business days) |
| Expedited | Faster than ground, usually by air for long distances | Priority Mail (1–3 business days) | UPS 2nd Day Air, UPS 3 Day Select |
| Overnight / express | Next-day or fastest available delivery | Priority Mail Express (1–2 days) | UPS Next Day Air |
| Flat rate | One price for a carrier box regardless of weight, up to a limit | Priority Mail Flat Rate (up to 70 lb) | No direct equivalent |
A courier is a company or driver that carries packages door to door, often for same-day or time-critical deliveries, and the explainer on what a courier is and how courier services work covers how they differ from national carriers.
Which Freight and LTL Terms Matter?
Freight terms apply once a shipment is too heavy or bulky for a parcel network, typically above 150 lb or on a pallet. Freight is priced by weight, freight class, distance and any accessorial services, rather than by parcel zones.
- LTL (less than truckload): several shippers’ pallets share one trailer, so you pay only for the space you use.
- FTL (full truckload): one shipper’s goods fill or reserve an entire trailer.
- Freight class: a rating from 50 to 500 under the National Motor Freight Classification (NMFC) that reflects density, handling, stowability and liability.
- Pallet or skid: the platform freight rides on; the standard U.S. pallet is 48 × 40 inches.
- Liftgate: a powered platform on the truck that lowers freight to the ground where there is no loading dock.
- PRO number: the tracking number an LTL carrier assigns to a freight shipment.
The comparison of LTL vs FTL shipping shows when each one makes sense, and the full LTL freight and logistics guide covers freight classes, pallets and pickups in depth. ParcelPath’s PalletPath service quotes LTL freight in the PalletPath freight quote tool.
Which Customs and International Shipping Terms Matter?
International terms decide who pays for transport, who carries the risk of loss, and who handles customs clearance and import charges. Most of them come from Incoterms, the 11 trade rules published by the International Chamber of Commerce, with Incoterms 2020 as the current edition.
- EXW (Ex Works): the buyer collects the goods at the seller’s premises and handles everything after that.
- FCA (Free Carrier): the seller clears the goods for export and hands them to the buyer’s carrier at a named place.
- FOB (Free on Board): for sea freight, risk passes to the buyer once the goods are loaded on the vessel. In U.S. domestic contracts, “FOB origin” and “FOB destination” instead set where ownership and freight responsibility change hands.
- DAP (Delivered at Place): the seller delivers to the named destination, and the buyer pays import duties and taxes.
- DDP (Delivered Duty Paid): the seller covers transport, customs clearance and import charges all the way to the buyer.
- HS code: the 6-digit Harmonized System number that classifies a product for customs. U.S. exports use a 10-digit Schedule B number built on it.
- De minimis: the value below which a country lets imports in without duty. The U.S. suspended its de minimis exemption for all countries on August 29, 2025, so low-value imports into the U.S. are now subject to applicable duties, taxes and fees.
The guide to FOB meaning, origin vs destination explains the domestic and international uses of FOB in more detail.
Which Packaging Terms Affect Shipping?
Packaging terms describe the box, mailer and fill you ship in, and they matter because packaging decides both dimensional weight and whether the contents survive. Choosing the smallest box that still protects the item is the simplest way to keep billable weight down.
- ECT (edge crush test): a rating of how much stacking pressure a corrugated box wall can take; 32 ECT is the common standard for parcel boxes.
- Inside vs. outside dimensions: carriers measure the outside of the box, which is what you enter when buying a label.
- Void fill: paper, air pillows or foam that stops items from moving in the box.
- Poly mailer: a plastic shipping bag for soft goods such as clothing, which usually avoids dimensional weight entirely.
How Do These Shipping Terms Help You Pay Less?
Most savings come from three terms: billable weight, surcharges and service level. Trimming box size lowers dimensional weight, verifying addresses avoids correction charges, and choosing ground instead of expedited service when the delivery date allows usually costs less.
Carrier choice matters too. ParcelPath is a free shipping platform with no subscription, no per-label fee and no minimums that offers up to 89% off USPS and up to 85% off UPS, along with free USPS pickups and printer-free labels through UPS Mobile Barcode and USPS Label Broker.
Frequently Asked Questions
What are the most important shipping terms for beginners?
Start with billable weight, dimensional weight, zone, surcharge, tracking number and shipping label. Billable weight is the greater of actual and dimensional weight, and zone measures distance between ZIP codes. Together these terms explain most of a carrier’s price, and the rest of the shipping terms you meet build on them.
What is the difference between shipping terms and Incoterms?
Shipping terms is the broad name for all the words used to describe pricing, labels, tracking and delivery. Incoterms are a specific set of 11 rules published by the International Chamber of Commerce, currently Incoterms 2020, that define who pays for transport and carries the risk in international sales contracts.
Which shipping terms change the price of a package?
Billable weight, zone, service level and surcharges set the price. Since July 12, 2026, USPS and UPS both calculate dimensional weight with a 139 divisor and round each measurement up to the next whole inch, so a box only slightly larger than needed can move into a higher billable weight.
What does FOB mean in shipping terms?
FOB stands for Free on Board. Under Incoterms 2020, FOB applies to sea freight, and risk passes to the buyer once goods are loaded on the vessel. In U.S. domestic sales, FOB origin means the buyer takes responsibility at pickup, while FOB destination keeps the seller responsible until delivery.
Sources
- USPS Postal Bulletin 22705: dimensional weight changes effective July 12, 2026
- USPS: Mail and shipping services
- UPS: Package dimensions and weight
- U.S. Customs and Border Protection: Suspension of duty-free de minimis treatment (fact sheet)
- Incoterms overview (International Chamber of Commerce rules)
- National Motor Freight Traffic Association: NMFC freight classification
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