Flatbed Trailer Length - As is the same with enclosed dry van and climate control trailers the standard length of flatbeds are 45 feet, 48 feet and 53 feet. The most common and representing about 75% of the aggregate capacity on the US highways is the 48-foot trailer. 45-foot trailers make up about 20% and 53-footers make up the remaining 5%.

Flatbed Trailer Width - The width of a Flatbed or any trailer, in 95% of the cases for that matter is, 102" outside width. There still are some older trailers, both enclosed and open that are 96". The difference in the case of an open trailer is the 102" of width is also the cargo carrying width, unlike enclosed trailer width. This means you can actually load cargo that is 102" wide and legally transport them. If your single unit shipping item exceeds 102" in width and length, you should read the section on specialized width.

Flatbed Trailer Height - The height of a standard flatbed is, well, infinite. It has no roof. However, the maximum height your cargo can be on most flatbeds, today is 8 ft. to 8 ft. 6 in. The reason for the variance is some trailers made by some manufacturers are slightly higher than others. You may have never really noticed it, but some have decks that arc upward higher than others in the middle. It has to do with the structural integrity of the design. It gets complicated from there. The thing to really keep in mind throughout these different sections on height is, the overall height of your cargo, combined with the height of the deck of the trailer is to make sure we do not exceed 13ft and a couple inches more.