Limit Length of trailer for non-CDL driver

Length limit depends on what you are pulling with.
Regular pickup truck with bed is limited to 65 feet.
Pull off the bed and put a fifth wheel you are then a tractor and not a truck and have a 75 foot limit.

 

Length limit doesn't matter (in most (all?) states anyway) for CDL. It's all based on weight ratings for both the truck and trailer.

 

The weight limit is what controls the level of license not the lenght.

 

Anything over 26,000lbs GVW requires a CDL. Length doesn't matter. I've seen guys pulling 50' poker run boats behind their crew cab long bed pickup trucks and they don't need a CDL.

 

Actually that's only true in California. The other states can be up to 36,000 lbs.. 26,000 for the truck, and 10,000 for the trailer. One pound over on the tuck will trigger a CDL. One pound over on the trailer, if the truck is over 16,000 lbs will also trigger CDL territory.