LTL Freight Shipping Guide: Classes, Costs & How It Works

LTL freight shipping is one of the most cost-effective ways to move goods across the country -- and it's also one of the most misunderstood. If you've only shipped via UPS, FedEx, or full-service movers, the freight world can feel like a different language: freight classes, NMFC codes, dimensional weight, accessorial charges, and pallet requirements. We've been in the shipping industry since 1999, and freight is one of the fastest-growing categories on our AI-powered marketplace. This guide explains everything you need to know about LTL shipping in plain English.

LTL stands for Less Than Truckload. It means your shipment doesn't fill an entire trailer -- so it shares space with other shippers' freight. A standard dry van trailer is 53 feet long and can hold about 45,000 pounds. If you're shipping 2 pallets that weigh 1,500 pounds total, you don't need (or want to pay for) the whole trailer. LTL lets you pay only for the space you use. This makes it dramatically cheaper than FTL (Full Truckload) for smaller shipments. LTL is typically the best option for shipments between 150 and 15,000 pounds -- anything smaller goes parcel (UPS/FedEx), and anything larger usually justifies a dedicated truck.

FTL (Full Truckload) is the alternative to LTL, and understanding when to use each saves money. FTL means you're booking an entire 53-foot trailer for your shipment alone. FTL makes sense when your freight exceeds 10,000-15,000 pounds or fills more than half a trailer, when you need faster transit (FTL goes point-to-point with no hub stops), or when you're shipping high-value or fragile goods that benefit from no handling between pickup and delivery. FTL cross-country costs $2,000 to $8,000 depending on distance and cargo weight. If your shipment is under 6 pallets or 5,000 pounds, LTL is almost always the better value.

Freight classes are the backbone of LTL pricing. The National Motor Freight Classification (NMFC) system assigns every type of commodity a class from 50 to 500. Lower classes are cheaper to ship; higher classes cost more. The classification is based on four factors: density (weight per cubic foot), stowability (how easy it is to stack and store), handling (does it require special equipment?), and liability (how likely is it to be damaged or to damage other freight?). Class 50 includes dense, durable items like bricks, nuts and bolts, and dense machinery -- cheap to ship. Class 500 includes gold dust, ping pong balls, and extremely low-density or high-value items -- expensive to ship. Most common freight falls in classes 55 to 200. For example: engine parts are class 85, household furniture is class 100-150, and clothing is class 100-125.

Dimensional weight (also called DIM weight) is a pricing method that compares the actual weight of your shipment to its volumetric weight -- and charges you for whichever is higher. The formula is simple: Length x Width x Height (in inches) divided by a DIM factor (usually 139 for domestic LTL). If your shipment takes up a lot of space but doesn't weigh much (think foam padding, lampshades, or bulky furniture), dimensional weight pricing will apply and your rate will be higher than what the scale says. This is why proper packaging matters -- reducing the size of your shipment by even a few inches on each dimension can meaningfully reduce costs.

Pallet shipping is the standard in LTL freight. Your goods are placed on a standard pallet (48 x 40 inches is the most common), stacked, and secured with shrink wrap, strapping, or banding. Palletizing your freight is important because it protects your items from damage during the multiple loading and unloading events that happen in LTL transit (your pallet will typically be handled 4-6 times as it moves through the carrier's hub-and-spoke network). It also makes your freight easier to handle and less likely to be reclassified by the carrier. If you ship loose boxes or irregular items without a pallet, the carrier may charge additional handling fees of $50 to $100 or reclassify your freight to a higher (more expensive) class.

Accessorial charges are the extra fees that catch first-time freight shippers off guard. These are charges for services beyond standard dock-to-dock pickup and delivery. Liftgate service ($75 to $150 per use) -- if you don't have a loading dock, the driver uses a hydraulic liftgate to lower your pallet to ground level. Most residential and many small business locations need this. Inside delivery ($100 to $200+) -- the driver brings your freight inside the building instead of just to the dock or curb. Residential delivery ($50 to $100) -- freight carriers are designed for commercial locations with docks. Residential delivery requires the driver to navigate neighborhoods, which takes more time. Limited access ($50 to $100) -- delivery to locations with restricted access like construction sites, schools, military bases, or locations without a dock. Appointment delivery ($25 to $75) -- scheduling a specific delivery time window instead of the default 8-hour window. Notify before delivery ($0 to $25) -- a phone call before the driver arrives. Stack these up and accessorials can add $200 to $500 to a shipment, so factor them into your total cost.

How to get the best LTL freight rates: accuracy is everything. Underreporting weight or dimensions leads to carrier re-weighing and reclassification -- and the corrected rate is always higher plus a re-class fee of $50 to $100. Measure and weigh your shipment precisely. Provide the correct NMFC code and freight class -- if you don't know yours, our team can help you determine it. Use standard pallets (48 x 40) whenever possible. Ship during off-peak times (Tuesday through Thursday typically have the best rates). Consolidate shipments -- two pallets shipping together are cheaper per-unit than two separate single-pallet shipments. And use our AI-powered marketplace to let carriers compete for your freight -- the same dynamics that drive down vehicle shipping rates work for freight too.

Transit times for LTL freight are longer than FTL because your shipment makes stops at carrier terminals along the way. A coast-to-coast LTL shipment typically takes 5 to 10 business days. Regional shipments (under 1,000 miles) take 2 to 5 business days. Local metro moves can be next-day or second-day. Transit times are estimates -- LTL carriers operate on schedules but delays happen due to weather, hub congestion, and capacity issues. If you need guaranteed delivery, most carriers offer a guaranteed service at a 20-40% premium.

Who uses LTL freight? It's not just for big companies with loading docks. Small businesses shipping inventory, e-commerce sellers moving bulk product, individuals shipping furniture or appliances, people relocating a partial household, estate liquidations, online marketplace sellers (eBay, Facebook Marketplace) shipping large items, and tradeshow exhibitors moving booth materials all use LTL freight regularly. Our marketplace at American Auto Shipping makes it easy to list any freight shipment and get competitive carrier bids -- whether you're shipping one pallet of auto parts or twenty pallets of commercial goods.

Ready to ship freight? List your shipment on our AI-powered marketplace. Provide your freight details -- dimensions, weight, freight class (we can help determine this), pickup and delivery locations, and any accessorial requirements. Carriers on our platform will submit competitive bids, and you choose the one that fits your budget and timeline. We handle everything from single-pallet residential shipments to multi-pallet commercial freight. Get started with a free quote today.