boat and trailer sizing

[jimsbuddy]

Looking online at a used trailer. Obviously I cant pick the boat up (18ft starcraft 2000lbs on the scale) and put it on the trailer to check fitments. What recommendations do you all have about getting a correct trailer size. couple things I thought of are
1) boat width, the trailer has guides
2) trailer runners angle
3) depth of hull in my boat vs channel of trailer

thx for any thoughts

[Boat Doc']

looks like you got it covered, few other things- brakes would be a bonus and make sure the winch post will reach and is adjustable.

[fishkisser]

Make sure the rating on the axles is enough for your fully loaded Boat ...

[jimsbuddy]

thanks... I looked today... couldn't find a axle rating, but it looked on the small side... the trailer width was also not wide enough... the 18ft boat he said that was on there must have been a narrow body...