Shipping costs for heavy items depend on weight, size, destination, and transport method. For domestic heavy items (50-100kg) in the US or Europe, expect $100-400 via ground freight services. International shipping of heavy items to Nigeria becomes significantly more expensive. Air freight for 50-100kg typically costs $400-1200, while sea freight ranges from $200-600 but takes much longer. Items over 100kg often require palletized freight, with costs calculated per cubic meter or by weight. Freight forwarders can provide better rates than individual couriers for heavy shipments. Additional costs include liftgate service ($75-150) if loading dock access isn’t available, inside delivery fees, and customs clearance. Some carriers impose oversized or overweight surcharges. For very heavy items (500kg+), full truckload or container shipping becomes more economical than parcel services. Always compare quotes from multiple freight providers.