Those of you with 18' light duty equipment trailers...

   / Those of you with 18' light duty equipment trailers... #1  

lostcause

Veteran Member
Joined
Mar 29, 2010
Messages
1,032
Location
Maine
Would you mind doing me a favor and taking a couple measurements on your trailer?

I'm talking about stuff in the 7k-10k weight range 2-axle trailers of course, but what I am looking for are two numbers: the dimension from the coupler to the front of the deck and the dimension from the front of the deck to the center of the axle group, or basically, to the center of the fenders. I have one plank with a soft spot in it, so this spring it will be time for re-decking. After about 13 years of use I guess can't complain.

When I built it I made it 16' long, which was all I needed, and it was easier to get both metal and wood in the correct lengths at that size. I knew what I was going to be hauling most of the time and how it would balance, so I put the axles quite a ways back. It is 9'-6" from the front of the deck to the center of the axle group, and only 6'-6" from the axles to the rear, with 4'-6" from the coupler to the front of the deck. For a bunch of reasons - loading and unloading angle being the biggest - I'm thinking that while I have it stripped down I'm going to put a beaver tail on the back. that will allow me more of an effective length on the ramps, which will be good when loading low slung vehicles. Not to mention that I peeled the hoop off the bottom of the backhoe boom that protects the hydraulic hoses because of the same problem.

I'm thinking that if I add a full 2' of beaver tail it would be 9'-6" / 8'-6" in front of and behind of the axles. I can still balance the load the same as I did before, and I don't think the dead weight of the extra 2' of deck will cause me any balance issues. I just wanted to know what the dimensions on everyone else's trailers are - mostly out of curiosity.

Also, don't worry about the difficulty of the job, the amount of time it will take, the cost effectiveness, or safety of the project. That has already been weighed in before I made the decision. All I have left is to decide on the length of the beaver tail and the exact angle of it.
 
   / Those of you with 18' light duty equipment trailers... #3  
I have a Quality brand trailer. It's a 16' deck with a 32" beaver tail. It measures 42" from front of deck to front of ball coupler. It measures 10' 6" from front of deck to the point between the 2 axles. This is a 7,000 # trailer. Hope this helps you out.
 
   / Those of you with 18' light duty equipment trailers... #4  
I have two trailers around that size so i measured them both. first off is my 18 footer with 6000lb axles. it started life as a 16' but like yours the axles were a long way back so i decided to add 2 feet to the back of it. it is a flat deck, no beaver tail and it measures 64" from the tongue to the deck and 10'6" to the middle of the two axles from the front of the deck.

My second trailer is a 16' car hauler with 3500lb axles. It measures 40" from the tongue to the deck, 9' 6" from the front of the deck to the middle of the two axles. then 54" to the back of the flat deck and finally it has a 24" beaver tail that is at a 10 degree incline. Hope this helps.
 
   / Those of you with 18' light duty equipment trailers...
  • Thread Starter
#5  
Thanks for the replies guys. I had a feeling that adding a couple feet on the back would put the axles a little far forward compared to the average equipment trailer, but I figured it would be close to normal when compared to a car hauler. It appears that I'm farther forward than average for both styles. I do have a longer tongue length than average though, so that might help offset it. I'll have to draw it up and see whether it looks feasible to just add to the back. I suppose I can just weld on 6 new spring mounts if I need to re-balance. I really want to get the full 2' of beaver tail on the back though - The extra slope would make it a lot easier to load.
 
   / Those of you with 18' light duty equipment trailers... #6  
Lostcause, I spent a couple of years building trailers for a living, First for someone else , then running my own shop. The method that I always used for " most" trailer's was to measure the total length of the deck( or deck and beavertail) find the center ie 10' on a 20' deck then move the center line of the axles back a 1/2" for each foot of length. In the above example the centerline woulld be at 10'10" from the front of the deck. This works well for most bumperpull applications.....Craig
 
   / Those of you with 18' light duty equipment trailers... #7  
Lostcause, I spent a couple of years building trailers for a living, First for someone else , then running my own shop. The method that I always used for " most" trailer's was to measure the total length of the deck( or deck and beavertail) find the center ie 10' on a 20' deck then move the center line of the axles back a 1/2" for each foot of length. In the above example the centerline woulld be at 10'10" from the front of the deck. This works well for most bumperpull applications.....Craig

Interesting way of doing it. Around here most of the trailers we see are 60/40 split. 60% in front, 40% in the rear.

Chris
 
   / Those of you with 18' light duty equipment trailers... #8  
Chris,Once the trailer tongue length is added to the overall trailer length the actual split will be in the 60/40 neighborhood....Craig
 
   / Those of you with 18' light duty equipment trailers... #9  
Chris,Once the trailer tongue length is added to the overall trailer length the actual split will be in the 60/40 neighborhood....Craig

Got ya.

Chris
 

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