This boarding ladder issue is a personal vexation of mine. A pet peeve. A "why the hell don't boat builders get this?" exasperation.
I think we should all call it a "re-boarding ladder" for the reason stated by Comodave:
"Whatever ladder you choose needs to be deployable from in the water in case someone is alone on the boat and goes overboard."
In our case, the boat builder had a poorly designed stern fold-down gate with a tiny two-step ladder attached to the back of the gate. Here's a picture of a different boat, but same model as our boat, so you can see the teeny-tiny ladder mounted on the stern gate:
That tiny ladder attached to the gate was USELESS for two reasons:
1) it didn't extend into the water, and
2) it could not be deployed when the fold-down gate was down.
Here is a photo, different angle, of the fold-down gate in the down position:
I had a frustrating-beyond-belief argument with the boat builder over this issue of the useless re-boarding ladder.
His argument was that I could climb up the skeg of one of the outboards if I fell overboard.
This was immediately after he had just pointed out how cool it was that when at anchor or in a marina, we would tilt up the outboards which would prevent marine growth on the running gear.
When I tried to point out to him the fallacies of his argument, including the fact that I was 65 years old and no longer limber enough to climb up an outboard's skeg... and the fact that the outboards would be tilted up out of the water in 99% of the situations where I might fall overboard... he simply refused to acknowledge these points.
I searched and searched, but no one manufactures a re-boarding ladder that will function on the back of a fold down gate in both the "up" and "down" positions.
As a result of some other issues we had with the cockpit of the boat, combined with the re-boarding ladder dilemma, we ended up having the stern of the boat completely re-designed and rebuilt to eliminate the stupid fold-down gate, and added a swim platform SO WE COULD ADD AN EASILY RETRACTABLE RE-BOARDING LADDER.
Thirty thousand boat bucks later, our stern looked like this:
I think I might drive Hubby Dan crazy sometimes with my boating safety concerns, but this was one that he fully agreed with.
After we eliminated the gate and added the swim platform, it was easy to find the perfect re-boarding ladder to mount beneath the swim platform.
We've only had to use the re-boarding ladder once. A boat neighbor in a nearby slip fell off his boat - and he didn't have a re-boarding ladder. We helped him out of the water using our re-boarding ladder and on to our swim platform.
Rant over,
Mrs. Trombley