Light Trucks :-

Light trucks are car-sized and are used by individuals and businesses alike. In the UK they may not weigh more than 3,500kg. Pickup trucks are pervasive in North America and some regions of Latin America, Asia and Africa, but not so in Europe, where this size of commercial vehicle is most often made as vans.

Medium Trucks :-

Medium trucks are larger than light but smaller than heavy trucks. In the US, they are defined as weighing between 6,300 kg (13,000 lb) and 15,000 kg (33,000 lb). For the UK the cut-off is 7.5 tonnes. Local delivery and public service (dump trucks, garbage trucks and fire-fighting trucks) are normally around this size.

Heavy Trucks :-

Heavy trucks are the largest trucks allowed on the road. They are mostly used for long-haul purposes, often in semi-trailer configuration. Road damage and wear increase very rapidly with the axle weight (truck weight divided by the number of axles). In many countries with good roads a 6-axle truck may have a maximum weight over 50 tonnes (50,000 kg).