The bed length itself really is irrelevant, so long as you're within vehicle length restrictions. What is relevant is the distance between your fifth wheel (typically mounted directly over the rear axle in a pickup truck or Western Hauler).. most of your RV trailers are designed on the notion that the distance between the centre of the hitch and the very rear of the bed will be between 45 - 50 inches. Some may be designed to allow the tailgate to simply be lowered, rather than removed, but most will not be.
Utility trailers, landscaping trailers, camper trailers, all kinds of trailers as long as the don't exceed the trucks maximum towing weight. The maximum towing weight depends on the model (2 wheel or 4 wheel drive), engine, wheel base and GVW of the truck. Rule of thumb is that the trailer should not exceed the weight of the truck.
Length does not determine whether or not a CDL is required.
We are to guess at the dimensions of said trailers -
There are surely requirements on how to attach bike trailers to a truck. However, these requirements vary state to state, and truck to truck. You should check with your local Motor Vehicle Department.
Sometimes auto dealerships offer used truck trailers. If one cannot be found there, then some trucking companies will sometimes sell their older trailers in order to make room for newer ones.
The regulations for when a CDL is required has nothing to do with length.
Victoria
In the U.S., a standard van-type trailer is 53 feet long. The truck pulling it can vary in length.
Truck Paper is a publication, both offline and online, that allows people to purchase truck and trailers. Parts are also available for purchase for trucks and trailers.
An SS silverado is a particularly powerful pickup truck designed especially for hauling heavy loads and for pulling heavy trailers. Many people turn the beds of these trucks into 5th wheel hitches.
This depends on several factors. How big the truck and trailer are. How old is the truck. New trucks are more energy efficiant. Is the trailer loaded or empty. If loaded how many horses are being trailered. Newer trucks pulling trailers get about 17 to 22 miles per gallon.
Cattle trailers are used to securely store and transport cattle by ranchers. These trailers can range in size from accomodating one or two cows to several dozen. The trailers are attached to an SUV or truck to pull them.