The average semi-truck weighs without a trailer weighs up to 25,000 pounds. With an empty trailer, the weight rises to 35,000 pounds. The maximum weight for trucks in the United States is 80,000 pounds, but individual states can set their own maximum weights. Michigan’s maximum gross vehicle weight is more than twice the federal limit. Other countries have limits on truck weights, too. The limits vary by state and by country, but it’s always necessary to enforce a freight truck weight limit. An excessive load can ruin a truck’s balance and cause an accident. Too much weight could also break the truck, so it’s in companies’ best interests to follow weight restrictions. The weight of trucks takes a toll on the pavement, so it’s common for authorities to put weight-based fees and taxes towards public infrastructure.