Aluma -Tech
Aluminum Fabrication & Welding
979.548.2847
Boarding Ladders can be attached to almost any boat and can be fabricated in many styles to accommodate your specific needs. The one to the left and just below are the most popular used by the wade fisherman.
Below is a folding dive ladder for a big offshore catamaran. The ladder itself is about 5 feet long and  can be locked in position when deployed . This  enables the diver to climb aboard a secured ladder in tossing seas.

Locking hinges.
Mechanical lock.
Grab handles  and nonskid oval  steps