Quote Originally Posted by sandm View Post
almost every boat dealer out there told us 1.5-2" if you add 18's to the trailer and we confirmed this with a few phone calls and a couple of the websites show 1.5" for 18's under boat specs.
I am assuming that you also might need to factor in axles getting clocked a little higher for the rims due to width.

be careful using tire load ratings. our boatmate trailer has a max rating of 7500lbs on the sticker. each axle is rated at 3750lbs. this is below the ratings of all 4 tires added up.
Very helpful info! so, essentially 5600 lbs on a trailer that can handle 7500 should, overall be Ok... yes? 5300 lbs if we only end up using 500 in lead.. if that's all it needs.. we'll have to get out there and test it out..