Trailer Tech
The following are common questions, answers, opinion and general info regarding trailers. We do our best to be factually correct and are constantly adding to and updating this page. If you have a question, a suggestion, or even an edit, feel free to submit it here and we'll address it as soon as we can. Thanks
What are the Department Of Transportation aka D.O.T. Regulations for trailer lighting and markings?
Click Here for Federal D.O.T. Lighting Requirements
What is GVWR and how does that relate to carrying capacity?
GVWR or Gross Vehicle Weight Rating is the total combined weight capacity of a trailer, including the weight of the trailer itself. It is not the Carrying Capacity or weight of the load you can safely place on a trailer. To find out the actual Carrying Capacity of a given trailer, you must subtract the weight of the empty trailer from the rated GVWR. For example a trailer with 7000lb (7k) GVWR rating, with an empty trailer weight of 2160lbs, will have a carrying capacity of 4840 lbs. ( 7000 - 2160 = 4840 capacity )
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GAWR or Gross Axle Weight Rating is the total combined rated capacity of the axles on a trailer. If a trailer has two 3500 lb rated axles, and springs, then the combined GAWR is 7000 lbs. Important Note: GAWR is only axle capacity and does not determine total GVWR. GAWR is simply one factor in determining the Gross Vehicle Weight Rating of any trailer. Just because a trailer has a couple 3500 lb rated axles under it, does not make it a 7000 lb GVWR trailer. Many other factors, such as frame structure, materials, coupler rating, tire ratings etc are used to determine GVWR. " A chain is only as strong as it's weakest link "
What is the maximum legal width of a trailer?
In most states the maximum allowable width is 102" overall.