Cargo bed for a truck, lorry or trailer

A cargo bed assembly (5) for of a truck or lorry comprises a rectangular bed that is divided lengthwise into two cargo bed portions (7,9). One cargo bed portion (7) is configured stationary. The other cargo bed portion (9) is configured so that it can tilt and extend to accommodate elongated cargo in the tilted position. The two cargo bed portions form one cargo support surface when the cargo bed portion (9) is in its lowered retracted position.