Betty,
I don't know the answer to your question, but I just bought an '04 265 CR. According to the manual and everywhere I looked online, it weighs 6,000 lbs "dry" - no gas, water, "stuff"... Figuring closer to 7,200 lbs when fully loaded with gear and family, I had an aluminum tri-axle trailer built that's rated for 10,500 lbs. Probably a little overkill, but I just loaded it on Saturday for the first time and then drove 150 miles to get it home with no problems.
I chose aluminum primarily because I didn't want the trailer weight (1,200 lbs for mine, significantly more for steel) to force me into a bigger truck ('07 F150 with a 9,200 lb tow rating), and if I ever decide to put it in salt water, corrosion won't be as much of an issue. The rig drives quite comfortably, but I plan to add more brakes to the trailer. The trailer manufacturer only put brakes on one axle - something I should have asked about ahead of time and corrected. All in all, though, I'm happy with the trailer.
I figured overbuilding the trailer for weight seemed like a decent insurance policy for both it and the boat. Whatever you do, make sure you learn everything you can about a trailer before you buy it - especially if it's used.
Good luck; I hope this helps.
- Mike