If you have one picked out then take it for a test drive across a scale.

Define "exact" . Amount of fuel , tire size , accessories all alter the weight .

Does Freightliner put the weight on the sticker in the door jamb like Kenworth and Peterbuilt?

that would be the ideal thing to do but its far away, it has a Detroit 12.7 maybe someone has the same type of truck the companies with weight requirements must be hauling heavy loads

What is the weight requirement that you are trying to meet?

jb hunt says it must Weight less than 20,000 lbs, fueled and occupied and I belive this truck is over that but what truck weighs less than 20,000? Are the new ones that light?

http://www.jbhunt.com/jobs/driver/dr...wner_operator/

If you are a newbie, I'll save you some grief and a lot of money. DO NOT CONSIDER JB HUNT, you'll go broke.
The only way to find out the weight of a truck is to put it on a scale. Every truck out there is ordered as a custom truck downtown to the brand of wheel seal. Most trucks should be under 20k unless it has a long wheelbase or is a Volvo 780. The bottom line though is the more restrictions the company has on the truck like model year or weight, the less they pay.