Need to what you want measured first. You could be referring to overall length, wheelbase, trailer measurements, weights... there's a lot which can be measured.
Several different ways have been used. Some measure from the nose to the rear of the trailer/ without the truck. Others measure from the rear bumper of the truck to the rear of the trailer claiming the overhang on the truck bed doesn't count because the truck takes up that space. Don't relay on the trailer model number it's usually wrong. I measure from nose to back bumper.
Measure from the point the trailer connects to the truck to the center of trailer axle ( if a tandem axle trailer measure to the center point between axles) multiply by 2 and this will have you close to turning radius.
15 tons
That depends on what type of trailer. They range from around $30,000 to over $100,000.
If the truck and trailer are not equiped with air brakes. If the truck and trailer are not comercial vehicals.
What truck.
A semi trailer costs over $100,000.
The trailer must not be able to move when the fork truck enters and leaves the trailer. Therefore, the trailer must be restrained.
The truck, or the trailer? For a new power unit, expect to pay, at a minimum, $120,000 at least.
Legally, in the US, it's typically between 43,000 and 48,000 lbs of payload. The max legal interstate weight is 80,000 lbs. for the truck, trailer, and payload. How much the actual payload comes out to depends on the empty weight of the vehicle and trailer, and that'll be affected by a number of factors, such as the frame length of the truck, what the trailer is made of (steel or aluminum), etc.
a trailer
69,500 pounds