2x4 or 2x6 bunk boards for trailer?

[stratorod]

Have a Stratos 275 Pro XL. Thinking of changing the bunks out at the end of the season. Has stock 2x4 carpeted bunks. It bugs me that all that boat is supported on narrow 2x4 wood boards and so few support points. I haven't heard of anyone having problems but it just bugs me. Was wondering if anyone on the board has changed from 2x4 to 2x6 boards? Just seems to me it would be a little additional insurance to have a heavier duty support for just a couple of dollars more for the wood. Any thoughts? Would appreciate input for or against. I am thinking about upping the size only on the bottom two bunks, and leaving the top two as 2x4.The way mine sits on the trailer it would not work to change the top two to the 2x6 because of the ribs on the bottom of the boat (or whatever they are called--you know what I mean. Only con I can think of is that it may be a little stiffer getting on and off the trailer. Thanks in advance.

[Todd Morgan]

Even 2x4 is overkill.........but there's no reason not to go 2x6 if you wish......avoid the strakes (vee's) and you should have no problems.

Never seen cracking problems on any brand from resting on the trailer. Even the rigs with only 2 bunks.

[stratorod]

Thanks Todd. Just curious but what type of material do the higher end boat trailers have for bunks? Are they treated lumber or some kind of composite material? When you change bunks on your rigs do you go back with wood or something else? Thanks in advance.