stumpfield said:
I need to hauler a 6500lbs mini dozer from the dealer to my property (a 300 miles trip) to save on the delivery cost. A free trailer if I do this instead of having it delivered... I only need to do this "once". I don't want to rent one because I need the trailer occasionally to haul bulky stuff but not even close to this heavy. Will a 7000lb trailer do it? or do I really need a 10000lb trailer? The trailer itself weights about 2000lbs. The tongue weight probably put 500lbs on the truck. So I'm about 1000lbs over the axle rating. Is there a safety factor in the rating? I heard that the axles are designed to handle a lot more. The manufacturer put a lower rating for liability concerns. What do you think?
A 7000# trailer does not have a 7000# LOAD capacity, it has a 7000# GROSS CAPACITY so you have to subtract the weight of the trailer from the 7000# to get you to the load capacity. A typical 7000# trailer weighs between 1500# and 2000# so you are clearly over the capacity of the trailer.
If you only use it one time, seriously consider RENTING a trailer, but rent a 10,000# trailer!
Further, most 7000# trailers are very poorly built, often out of simple angle iron. If someone tells you that there is a safety rating then I think you are being lied too. 7000# trailers are often made by unskilled welders in small shops, there is often no engineering behind them, they just buy some steel and some off the shelf axles, leaf springs, etc and go into business. DO NOT BELIEVE THESE HAVE ANY SUBSTANTIAL SAFETY FACTOR.
I had one, I destroyed it, and I didn't even overload it. Don't risk it, you have too much too lose (load, innocent lives, etc). I would suggest nothing under a 10,000# trailer, that would give you a working load of roughly 8000# capacity.