A 16 foot Penske Truck weighs around 14,000 lbs which is pretty heavy.
And even a 14 foot Penske or other truck weighs around 14,000 lbs as well empty and then you have the added weight of the stuff that you're hauling with the truck.
When you add the weight of the stuff you're hauling it can make the truck weight in around 16,000 to 17,000 lbs or more.
And for a 20 foot long Penske or other truck it can weight 500 lbs more than the 14 or 16 foot truck.
A 20 foot long penske Truck weighs in at around 14,500 lbs.