Global trade is growing at an unprecedented rate. According to the World Trade Organization, global merchandise trade volume is projected to rise by 2.6% in 2025 after a recovery trend that began in 2024.¹ Whether it’s parcels heading across town or freight shipments moving across continents, businesses of every size depend on reliable shipping to move goods efficiently.
But shipping is rarely straightforward.
Freight modes, rate structures, surcharges, accessorials, and carrier contracts—there’s a lot to unpack. And without a solid understanding of the basics, businesses risk overpaying for logistics or under-delivering on customer expectations.
In this guide, we’ll walk through the core concepts of freight and shipping, demystify key terms, and explain how modern logistics teams can ship smarter in a fast-changing environment.
Common Modes of Freight Transportation
Each mode of freight comes with trade-offs in cost, speed, capacity, and geographic reach. Here’s a breakdown:
1. Road Freight (Truckload, LTL, Parcel Carriers)
Road transportation dominates domestic freight in North America. The U.S. freight trucking industry moved 11.46 billion tons of goods in 2023.² It’s highly flexible, able to reach virtually any address, and supports a wide range of shipment sizes.
Main types of road freight:
Less Than Truckload (LTL): Shared truck space for shipments between 150–10,000 lbs. Ideal for businesses with smaller palletized loads that don’t fill a full truck.
Full Truckload (FTL): A single shipper uses the entire truck. It’s faster and reduces handling risks.
Parcel Carriers: For lightweight shipments under 150 lbs—think UPS, FedEx, USPS.
Road shipping is often the first and last link in multimodal shipping.
2. Rail Freight
Rail is a cost-effective option for high-volume shipments over long distances. In the U.S., it’s often used to move commodities like coal, lumber, and manufactured goods between hubs. While it’s not as flexible as trucking (requiring terminal access), it offers lower cost per ton-mile and a smaller carbon footprint.
Limitations:
Fixed routes and schedules
Requires road transport for first/last mile
3. Ocean Freight
More than 80% of global trade by volume is carried by sea.³ Ocean freight is the backbone of international logistics, especially for goods sourced from Asia or shipped in bulk.
Ocean shipping methods include:
Full Container Load (FCL): One shipper rents an entire container.
Less than Container Load (LCL): Multiple shippers share space in a single container.
Bulk and Breakbulk: Used for raw materials like grain, steel, or machinery.
Transit times are longer, but the cost-per-unit is low, making it the most economical choice for long-haul freight.
4. Air Freight
Air is the fastest—and most expensive—way to move goods. It’s ideal for urgent, time-sensitive, or high-value items such as electronics, pharmaceuticals, or perishables.
Air freight advantages:
Global reach
Fast delivery (1–5 days for international shipments)
Drawbacks:
Smaller shipment size
Higher cost per pound
Greater environmental impact
Parcel Shipping: The Building Block of E-Commerce
While freight handles the heavy lifting, parcel shipping fuels direct-to-consumer businesses. In 2022 alone, global parcel volume reached 161 billion, and is forecasted to hit 256 billion by 2027.⁴
Major carriers like UPS, FedEx, DHL, and USPS offer extensive last-mile delivery networks, covering everything from residential delivery to same-day express services.
Parcel shipping generally involves:
Items under 150 lbs
Labeling and barcoding
Zone-based pricing
Common surcharges like fuel or residential fees
E-commerce retailers must perfect their approach to parcel logistics if they hope to scale profitably.
Understanding Parcel Shipping Costs: What Actually Determines Your Rates?
Shipping isn’t priced randomly. It’s calculated based on several key inputs.
1. Weight (Actual vs. Dimensional)
Carriers use the higher of the two weights:
Actual Weight – measured on a scale
Dimensional (DIM) Weight – based on volume using a divisor (usually 139 or 166 for inches)
Formula:
DIM Weight = (Length × Width × Height) / DIM Divisor
Bulky, lightweight items often trigger DIM weight pricing.
2. Distance (Zones)
Carriers divide service areas into shipping zones based on the distance from origin to destination. The higher the zone, the more expensive the rate.
Example:
Zone 2 = nearby destination
Zone 8 = cross-country shipment
3. Service Level
Speed matters. From economy ground to next-day air, each tier carries its own price tag.
Service Level | Typical Delivery Window | Cost |
Ground | 1–5 days | Low |
2-Day Air | 2 business days | Medium |
Next-Day Air | 1 business day | High |
International Express | 1–5 days (global) | Very High |
4. Accessorials & Surcharges
Surcharges can significantly inflate costs. Common examples:
Fuel surcharge
Residential delivery
Signature required
Saturday delivery
Peak season fees
Understanding and auditing these charges is key to cost control.
What Is a Freight Class?
If you’re using LTL shipping, your shipment is assigned a freight class—a standardized category that helps determine pricing.
Freight class is based on:
Density (weight/volume)
Stowability
Handling
Liability
The National Motor Freight Classification (NMFC) system assigns classes from 50 (least expensive) to 500 (most expensive). Fragile or bulky items typically fall into higher classes.
Spot vs. Contract Rates
Spot Rates: One-time quotes based on market conditions (demand, fuel costs, capacity). These change frequently.
Contract Rates: Pre-negotiated rates with a carrier, typically in exchange for a guaranteed volume over time.
Smart shippers use both depending on the situation, but contract rates are generally more stable and cost-effective for consistent shipping patterns.
Shipping Documents & Compliance Essentials
To keep shipments moving legally and efficiently, you’ll need the right paperwork.
Common documents include:
Bill of Lading (BOL): Contract between shipper and carrier
Commercial Invoice: Used for customs in international shipping
Packing List: Lists the contents of the shipment
Certificates of Origin or Insurance (if applicable)
Missing or incorrect documents can result in customs delays or fines, especially for international freight.
Freight Optimization Best Practices
Shipping smarter isn’t just about knowing the rules—it’s about using them to your advantage. Here’s how savvy businesses reduce costs and improve performance.
1. Consolidate Shipments
Combining multiple small shipments into one larger load can reduce per-unit costs, especially in LTL or ocean freight scenarios.
2. Audit Shipping Invoices
Errors happen frequently, especially with accessorials, incorrect weights, or duplicate charges. Freight audit software can automatically catch and dispute these.
3. Optimize Packaging
Right-sizing your packaging avoids unnecessary DIM weight charges and reduces damage risk.
4. Use Shipping Analytics Tools
Platforms like Lojistic give you visibility into shipping spend, compare carrier performance, and identify inefficiencies. Real-time dashboards help you optimize over time.
5. Negotiate Smarter Contracts
Carriers are open to negotiation—if you come prepared. Use your shipping data to build a business case and negotiate better base rates, discounts, and surcharges.
Shipping Smart Starts With the Basics
Freight and shipping don’t need to be confusing or expensive. By understanding the fundamentals—like shipping modes, rate structures, freight classes, and optimization tactics—you gain the confidence to make smarter logistics decisions.
Whether you're moving parcels or managing freight across continents, every dollar saved on shipping adds up over time.
Lojistic helps you simplify the process of cost management. From shipping analytics to carrier cost comparisons, automated audits, and tools to maintain best-in-class contracts, the platform empowers businesses to identify areas of overspend and streamline operations.
Connect your carrier accounts and explore Lojistic’s flexible pricing plans tailored to your logistics needs. Let Lojistic help you take the guesswork out of freight and shipping.
Sources
World Trade Organization – Trade Forecast 2025
American Trucking Associations – Freight Forecast 2023
Author
Christine Basile
Christine Basile
Director, Rate Services
Christine Basile brings over two decades of hands-on experience in shipping and supply chain operations, with a career spanning 3PL, shipper, and carrier-aligned organizations. She has held strategic leadership roles at Apple, Kenco Group, AutoZone, and RR Donnelley, where she negotiated and managed contracts totaling over $1.3 billion in annual shipping spend.
Her background in building scalable shipping strategies, leading RFPs, and implementing enterprise-wide cost control initiatives makes her a trusted advisor to shippers of all sizes navigating an increasingly complex logistics environment.
As Director of Rate Services at Lojistic, Christine applies her deep expertise to help clients reduce costs, streamline operations, and optimize performance across their shipping networks.