Practical explanations, formulas and planning guidance for the same shipping and logistics problems covered by our calculators.
Learn the basics of U.S. customs valuation, including transaction value, freight and insurance treatment, assists, royalties, packing and common commercial-invoice mistakes.
Read guideUnderstand the difference between HS, U.S. HTS and Schedule B codes, which one is used for imports or exports, and why the first six digits can match while later digits differ.
Read guideUnderstand what an Importer of Record does in the United States, including importer numbers, entry data, duties, classification, valuation and compliance responsibility.
Read guideCompare freight forwarders and customs brokers by transport, documentation, customs entry, classification, valuation, duties and importer responsibility.
Read guideCompare floor-loaded and palletized containers by cube utilization, unloading labor, damage risk, receiving speed and destination cost.
Read guideUSPS expanded parcel-dimension reporting requirements in 2026. Learn when the Dimension Noncompliance Fee applies, how the rollout works and how shippers can reduce correction risk.
Read guideCompare column, interlocking and pinwheel pallet patterns by compression strength, stability, deck utilization and product rigidity.
Read guideLearn how pallet overhang and underhang affect carton strength, load stability, cube utilization and freight cost—and how to choose the safer footprint.
Read guideLearn how warehouse cartonization systems choose shipping boxes using item dimensions, weight, cube, quantity and packing rules—and where human validation still matters.
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