South Central Illinois | What is the purpose of a tri-axle trailer? Is the tri-axle trailer allowed to be more than 80,000 pounds total? What is the weight limit of a tri-axle trailer semi set up? A few years ago there was an effort to allow 92,000 pounds on a tri-axle trailer semi setup with single wheels on the extra axle. This was supposed to be nationwide, I think. Somehow the vote failed for safety reasons. Are there variations, state to state, on total weight? |