Boat lift bunk length

[Marc K]

When I bought our home six years ago, the boat was already in the boathouse on slings. All is well but want to convert to a cradle lift in order to have guide posts, but I do not know how long the bunk boards need to be. My pontoon boat is a 26-year-old 25' with 115HP on the back. I am guessing that they need to be 16 '- 20' with full support of the stern and some overhang of the nosecones and tube.

How long are your bunk boards as compared to your pontoon length?

Thanks!

[Marc K]

No input?

My trailer bunks are 25', but I am being told that 16' will be fine for a stationary lift application. I am thinking that basic pressure treated 2x6 will do it?

[curtiscapk]

I think as long as the centers are covered (center weight) you'd be good!