Everyone loves to recommend the most expensive route on the forum sites

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There is no doubt, with full size rigs on trailers, a 10k trailer is ideal as it is "more" adequate to handle the load of our fullsizers and have some to spare, which is never a bad thing. Downside, the price tag goes up quite a bit.
I have had my 7500lb 18' flatbed for almost 5 years now. I have hauled my blazer on it all over the west, and it's never let me down. Sure I've had a few tires go out on me (which is kinda just part of the game with trailers) and I've had one bearing go out that took me 20 min to change on the side of the road (I always keep at least two sets of bearings in my truck for such occasions). Shoot, when I moved from CO to ID, I had my V3500 Crew Cab filled to the brim (both the cab and bed full) of all our junk on that trailer, and it made the ~800 trip just fine. Sure on that occasion it was overloaded, and that was the only time it's been loaded that heavy, but a 7500lb trailer can still get the job done just fine.
Plus, there is nothing stopping you from buying a 7500lb trailer and using it for your needs now, then later on as funds/time permits, you can always swap in a set of 5k axles under it to suite your needs. I look at my trailer kinda like I looked at my V3500 or my blazer, I will eventually build it to suite my needs as time/money permits. I built drive-over fenders on mine cause that's what I needed. And I will swap in 5k axles on mine cause that's what I want and it will suite me later.
All in all, don't turn away from a 7500lb trailer if it suites the immediate needs and is a pretty good deal. It can still get the job done just fine
