Freight Guides
Plain-English answers to the questions that cost money on the dock — how freight class works, what the 2025 NMFC density change means, and how to keep your shipments from getting reclassed. Every guide pairs with a free calculator so you can rate freight the way carriers actually do.
Freight class & NMFC
- Freight Class & NMFC Codes: The 2025 Density Guide — Start here. What class is, the density math, the 2025 change, and the multi-pallet trap — the full picture in one page.
- Why Was My Freight Reclassed? — The three causes of a reclass, what a W&I back-bill costs, and how to dispute it with documentation.
- The 2025 NMFC Density Change — What the NMFTA overhaul changed, the docket timeline through 2026, the pallet-height mistake, and how to prepare your BOLs.
- How to Dispute an LTL Reweigh — The 200 lb / 5% tolerance, why forklift weights fail, what a reweigh costs, and how to win the dispute with a certified scale ticket.
- Density to Freight Class Chart — The full 2025 NMFTA scale, 50 to 500, with every class’s pounds-per-cubic-foot range. Look up any density.
- Freight Class for Multiple Pallets — Why a mixed shipment isn’t classed pallet-by-pallet, with a worked aggregate-density example.
- What Is PCF (Pounds per Cubic Foot)? — The density unit behind freight class: PCF to kg/m³, pci to PCF, and how density sets your class.
Freight class by commodity
- Freight Class for Furniture — Light and bulky, so it classes high — typically 100–200. The density math and a worked dresser example.
- Freight Class for Mattresses — Almost pure air — usually class 200–300. Why roll-packed mattresses class lower.
- Freight Class for Appliances — Bulky but heavy, so class 92.5–150. Why a fridge classes higher than a washer.
- Freight Class for Electronics — Protective packaging drives it to class 100–175. Why flat-panel TVs class so high.
- Freight Class for Clothing — Light and compressible — class 100–175. How packing density moves the number.
- Freight Class for Tires — Heavier than they look — class 70–150 depending on how densely they nest.
- Freight Class for Auto Parts — A huge range: dense boxed metal at class 65–110, light body panels much higher.
- Freight Class for Lumber — Dense and solid — class 60–70 at the cheap end. How moisture moves it.
- Freight Class for Steel — The densest LTL freight there is — class 50–60, the lowest rates on the scale.
Warehouse — inventory planning
- Inventory Planning: Safety Stock, Reorder Point & EOQ — The three numbers that keep stock available without over-ordering — the formulas, worked examples, and how they fit together.
- How to Calculate Safety Stock — Both methods (min/max and statistical), the Z-table, and why lead-time variability can triple the buffer.
- How to Calculate the Reorder Point — Demand during lead time plus safety stock, with worked examples and the unit-consistency trap.
- Economic Order Quantity (EOQ) — The EOQ formula, a worked example, and why the cost curve is forgiving enough to round to a pack size.
Warehouse — cost & space
- Warehouse Cost & Space Planning — How many pallet positions a floor holds, how full they are, and what each one really costs once labor and equipment are counted — not just rent.
- How to Calculate Cost per Pallet Position — The four cost buckets, a worked example, per-year vs per-month, and why cost per occupied position is the number that matters.
- How Many Pallet Positions Does a Warehouse Hold? — The capacity formula, a rack-type density table, and the levels-and-usable-area levers, with a worked example.
- What Is a Good Warehouse Utilization Rate? — How to calculate it, position vs cube utilization, and why the healthy target is about 85% — not 100%.
- Dock Door Throughput: How Many Trucks Can You Turn? — Trucks per shift per door, why dwell time is the biggest lever, and when the dock becomes the bottleneck.
- Units per Labor Hour (UPLH) — The core labor metric, how it converts straight to labor cost per unit, and what moves it.
Import / Export
- Landed Cost: What It Really Costs to Import — The customs value → duty → landed cost chain, worked end to end, so you price on your real per-unit cost.
- Customs Value: FOB vs CFR vs CIF — The dutiable value, how the basis swings it, which basis your destination uses, and the additions that are always dutiable.
- How to Calculate Import Duty — Duty = rate × customs value, why VAT/GST usually dwarfs it, the tax-base trap, and the effective rate.
- Incoterms 2020 Explained — All eleven rules in plain English, who pays, where risk passes, and the cost-versus-risk trap.
- Chargeable Weight: Air vs Ocean — How carriers bill the greater of weight and space — air volumetric weight and ocean revenue tons, worked through.
Pallet loading & configuration
- Pallet Calculator Guide: Cases Per Pallet & Loading — Start here. How Ti-Hi works, the height and weight limits that cap a stack, and how finished pallets fill a truck.
- How Many Boxes Fit on a Pallet? (Ti-Hi) — Divide the 48×40 footprint for cases per layer and the height for layers, with a worked example.
- Pallet Configuration & Layout Patterns — Column, brick, pinwheel and interlocked stacking — which is most stable, and when to use each.
- How Many Pallets Fit in a Truck or Container? — 26 in a 53′ van, 24 in a 48′ trailer, 10–11 in a 20′ container — and why the real number varies.
CBM & volume
- How to Calculate CBM (Cubic Meters) — Start here. The formula in every unit, CBM to chargeable weight, and how much fits in a container.
- CBM to KG: Cubic Meters to Weight — 167 kg per CBM by air, 1 CBM vs 1,000 kg by ocean — the conversions worked through.
- The CBM Formula (cm, Inches & mm) — The exact divisor for every unit — 1,000,000 for cm, 61,024 for inches — with examples.
- What Is CBM in Shipping? — The plain-English definition, why freight is quoted in CBM, and where it shows up on a quote.
Freight rating & cost
- What Is CWT (Hundredweight)? — CWT means 100 lb. Convert CWT to pounds, kg and tons, and how per-CWT (per-100-lb) freight pricing works.
- What Is Truck Detention? — The charge for holding a truck past its free time: rates, how to calculate it, and detention vs. demurrage.