or bring it to a truck scale, unhook it on a pad, put your truck on the first 2 pads. weigh it. your out $9, and you even know the axle weights on tour truck
I plan on weighing it but I have to buy it first. I looked at three trailers yesterday and they weighed 1300,1500 and 2150 and I really can't tell it by looking at them except the the heaviest has an extra beam on the tongue.