Boat lift bunk height san/ssn 210 og

[brettmcox]

Getting some work done on my father's boat lift. When they work on it he offered to add height to get my boat on it. How high do the bunks need to be to clear the prop AND fins? There are straight cross members....

[charlesml3]

Standard 2x12s work pretty nicely for this. Note that with some cradles, the additional buoyancy from 2x12s may cause the cradle to float. In that case, you'll need to figure out a way to add some weight. The boat lift stores sell these heavy balls that clamp onto your lift cables. I've also seen people just wire bricks on top of the I-beams to sink it.

-Charles

[Quinner]

Many types of lifts out there and several variables that could effect how high the tracking fins would be from the cross member. What brand lift? How far apart are the bunks as where they fall on the hull would also effect the elevation of the fins. If you have plenty of depth taller is always better.

[SANonTellico]

Clearly depends on the type of lift but you generally don't pull the boat up far enough that the prop needs to clear the cross beam.
I agree that 12" is generally plenty but I recommend that the first time you put your boat on the lift, you shut it off and get in the water and gently push your boat on to the lift.
Also, aluminum bunks with a rubber pad eliminates any floatation issues and there's no carpet that will enventually need to be replaced.

[homer12]

I don't have your same boat, but here's an example of how we did our 211 this year. I assume you are talking a hoist type of lift here. These are angled single 2x12's. I tried to get the angle so the flat part of the 2x12 was matched up to the hull. They are a little closer in the front than the back. Like someone else said, the first time you do it, be in the water, go plenty deep and just feel around and lift a little and look and adjust until just right. Also, our prop isn't close to the cross member.