# Dimensions & Details

When trying to explain the dimensions of our rubber speed bumps and rubber speed humps, it can be a little confusing.  Which measurement is the length?  Which is the width?  Is width the road width, or the longest or the shortest measurement of the product?  And what does driving distance mean?

Because there are different products, and measurements can get so confusing, we always try to be consistent and use terms that help identify each dimension.

Normally, we try to refer to the width of the product using the measurement that would reach the width of the roadway.  So for a speed bump, this could be 6’ wide, or 4’ wide.  But for a speed hump, this measurement would be 19.5”.   And we try to stay away from the term “length” as this can be confusing.  I prefer to say “driving distance” because this is the actual measurement of bump or hump that a vehicle will drive over to get from one side to the other.

The driving distance of a speed bump is just 12”, making this the more aggressive product.  The speed hump however, offers the most contact with the tire at 35.5”.

To be sure you get the proper number of pieces, it’s always best to know the width of your road from side to side.  Also, it helps to know if you have any room for adjustments in that width.  For example, let’s say you have a 22’ wide road, and it offers 2’ of shoulder on either side.  That means you have a maximum of 26’ that you can use to install bumps or humps.

Using a speed hump, you could install 14 pieces of speed hump, plus 2 end caps to provide you with a grand total speed hump width of exactly 26’.  In contrast, four pieces of the 6’ speed bump, plus 2 end caps would provide you with 25’6” of speed bump.

Of course depending on the needs of your situation, and the variables to be considered, the width of the finished bump or hump isn’t the only thing to determine which product you should use.  Always talk with a sales rep about the location, design and variables of the area you’re working in to determine the best product to fit your needs.  This will save time, money and headache down the line.