Parcel or freight
While parcel service is cheaper for small boxes, freight service is often better for pallets, crates and heavy pieces. Parcel networks commonly cap pieces at about 150 pounds. Anything beyond that moves as freight.
Freight has several modes. LTL shares a trailer and moves through terminals. Full truckload puts one load on one truck. Expedited ground sends a dedicated van or truck straight to the dock, and air freight and air charter fly it.
On balance, size and urgency decide the mode more than habit does. That makes air the practical choice for urgent shipper freight over long distances. AirFreight.com arranges air freight, air charter and expedited ground.