The Collaborative International Dictionary
cart load
cartload \cartload\, cart load \cart load\n. as much as will fill or load a cart; the quantity that a cart holds. In excavating and carting sand, gravel, earth, etc., one third of a cubic yard of the material before it is loosened is estimated to be a cart load.
Usage examples of "cart load".
Compliment and flatter 'em and sell 'em the whole cart load, that's my way.