an open truck bed or trailer with no sides; used to carry large heavy objects
"The movers loaded the antique piano onto the flatbed truck because it was too wide for the enclosed van."
An open freight vehicle with no sides, designed to carry heavy or outsized loads.
"The construction crew loaded the massive steel beam onto the flatbed truck for transport across the city."
To transport by flatbed.
"The construction crew decided to transport the massive steel beam across town on a flatbed truck rather than trying to load it into their delivery van."
Having a flat bed.
"The delivery driver unloaded the heavy furniture onto his truck's flatbed."