The Tractor-Trailer Combination Guide
The tractor-trailer combination is the most popular type of commercial vehicle used for long-haul freight transportation.
A tractor-trailer is a combination of a semi-truck and a semi-trailer.
Due to its versatility, shippers choose tractor-trailers to haul all kinds of goods.
Also, the tractor-trailer combination provides truck drivers with many customization options to improve their comfort while driving.

The biggest truck sleeper cabs in the world - find out video reviews of some on the largest sleeper cabs.
The inside of a semi-truck sleeper cab layout - find out what is the inside layout of a modern sleeper cab.
Truck sleeper cab accessories - find out what accessories you may need to improve your sleeper cab comfort.

The Weight per Axle Distribution in a 53' Tractor-Trailer - find out the correct weight distribution per axle on a semi-trailer.
Semi-Trailer Dimensions - find out the dimensions of different types of semi-trailers.
Popular Types of Semi-Trailers - find out the most used types of semi-trailers.

Best-Selling Semi-Truck Brands in the US - find out a list of popular semi-truck manufacturers.
What Is a Bobtail Truck Mean? - find out what is the meaning of bobtail in trucking.
Semi-Truck Classification by Weight - Find out how are semi-trucks classified by their weight.
Related:
13 Step Tractor-Trailer Inspection Checklist for PTI - find out what to check while doing the truck's PTI.