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Choosing a Trailer
Trailer Hitch
  Home  >  Technical Articles  >  Trailer Choice
Choosing a Trailer Choosing the Right Utility Trailer  ... A Few Things to Consider Custom Design
Designers Mechanics Versatility
There is a lot to consider . . .
        . . . when choosing a trailer -- especially a utility trailer.  There are many choices and options available.  So many ways to customize them.

This guide is intended to help navigate the possibilities.  Use these questions and thoughts to make a list of requirements for things you think are important.  Then use the list to choose the right trailer for you.

You may also want to read our feature on "What makes a good trailer design."

Trailer Plans

Utility Trailer
First Step:  Discover the Need:
Obviously the trailer must first meet your needs -- how will it be used?  It's not enough to say "I need a trailer to haul building supplies."
Is that  bricks?  . . .  10 Penny nails?  . . .
. . .  Or  . . . 2 x 6 x 20's?
The truth is, if your situation is like most, the trailer will also be used for a lot of other things like moving furniture, hauling leaves, rocks and other equipment.

Take some time and think through your needs and all the possibilities (like your friends needs, your wife's needs, and your wife's friends needs - Yes, I've been there).  Knowing how the trailer will be used is the first big step in your decisions toward the best trailer for you.

Trailer Plans Design Options
Consider the following questions about how the trailer will be used:
  • How big should it be?
  • Width: 4'?  5'?  6'?  8'?
    (What are the legal limitations in your state or province?)
  • Length:  8'?  10'?  20'?
    (Where will it be stored?)
  • What load capacity is required?  1000#?  2000#?  3500#?  6000#?  More?
  • Is the bed height a factor?
    (How will you be getting things on and off?)
  • Does it need sides?
  • Does it need a top?
  • Does it need ramps?

Utility Trailer
Step 2:  Towing: Axle Options
Trailer Hitch Example
Is Your Trailer Hitch This Good?

A friend sent this picture, I didn't know where it came from until a paramedic who responded at the accident said it was in Big Thompson Canyon along the highway from Loveland Colorado to Estes Park.  I know that canyon, . . . and that's one very luck driver!
Click on the image to see the full picture.

The second factor to consider is how the trailer will be towed.

- Will it be towed by a truck or other large vehicle?
- Or is the trailer to serve as a truck replacement?
- Will it be towed by the family car?
- Maybe a mini-van?  Or an SUV?

- Is the trailer to augment the capacity of your truck?
- Or haul specific equipment?

- How far and how fast will the trailer travel?
- Are strong winds common in your area?
- Are mountains or sustained hills common?
- Is fuel economy important?

These questions are a good guide for choosing the right trailer size.  Each vehicle has a towing capacity.  Check the owners manual to see that your needs can be met with the vehicle you have in mind.

The trailer must meet the needs, but it must also be sized for the vehicle that will pull it.  If your vehicle does not have a receiver (ball to hitch the trailer to) make sure you can mount one.  There are lots of places that specialize in hitches. or are good places to start.

Here are some more questions to think about with respect to towing:

  • What vehicle(s) will tow the trailer?
  • What is the towing capacity of the tow vehicle(s)?
  • Can a trailer hitch be mounted to the vehicle?
  • What is the height of the hitch point?
  • Will the trailer need brakes?  Hydraulic?  Electric?
If a certain trailer width is not required (like for a certain piece of equipment), then it is usually best to make the trailer the same width, or only slightly wider than the tow vehicle.  Going longer instead of wider helps with visibility, maneuvering, and reduces wind drag (better fuel economy).

Additionally, trailers that are significantly taller than the tow vehicle have much more wind drag.  This can be costly in fuel, and can also cause trouble in cross winds on the highway.

Trailer Size
Step 3:  Storage:
A consideration which is often overlooked -- Where will the trailer be stored?  The answers to these questions will help determine your needs for trailer finish and shelter.  They may also impact your decisions on trailer size.
Trailer Storage

A trailer stored out under a tree.
  • Will the trailer be stored in a garage?  (or other indoor facility?)
  • If in a garage, will it be tipped on it's side or end to make room for a car?
  • Will it be stored outside?
  • If outside, what shelter from the wind, moisture and sun are available?
  • How much space is available for storage?
  • Is the access convenient and easy?  Or will it make the trailer difficult to access?
Whether you choose to build a trailer, or purchase something new, the investment is well worth protecting.  On the other hand, if you can scrounge a cheap trailer to fill your need, shelter or protection may not be worth so much.

Check your covenants too.  Some places won't allow trailers to be stored outside -- and your wife might be really upset if you put the car outside so the trailer can be in the garage!  That is worth checking out.

Sport Trailer
Step 4:  To Build, or to Buy?
Trailer Plans Design
This is a classic question, and the answer is:  That depends.

From the information above, you should have a pretty good idea of what you need.  Next, find out if you can accomplish that with a purchased trailer.  If not, consider building one.

In my mind, there are only a few good reasons to build your own trailer:

  • Do you want something special in the construction?
  • Do you want to add options or other customization?
  • Do you want a cool project to be really proud of?

It is not usually cheaper to build one yourself -- that is, for a standard style utility trailer.  Factories have economies of scale when purchasing big quantities of raw materials and components.  They also have special jigs to build them quickly and efficiently.  However, if you need something special, or want something custom, it can be nearly impossible (or very expensive) to have a fab shop modify a trailer for you.  So, if you have the skills, and if you have the reason, build it yourself!  It's an awesome project, and when you're finished, you'll have reason to be super proud.

If you need trailer plans, we have them at
If you're interested, we say Build your own, and make it personal!

Trailer Axle

Now that you have a good idea of the requirements your new trailer -- and how you might acquire it -- it's time to examine  What Makes a Good Trailer Design  and our list of  Trailer Towing Tips.

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