20" Steel Power Catamaran

[Edwardn]

Make that 20' Steel Power Catamaran

I have seen alum power Catamarans but i havent been able to find anything in steel as of yet in the 20 foot range. I assume alum is the better choice of material but i have no experience welding it, steel is not a issue for me to work with but i also need the boat to be trailered behind a mid size suv so the weight may end up being one. I'd appreciate and info or advice on this.

EDD

[Mr Efficiency]

Steel is heavy and cats have a goodly surface area, given that light gauges are strong enough, but don't allow room for rust losses over time, you have a minimum lower limit of practicability as regards thickness, that makes for a very heavy boat, as well as a high maintenance one. Hardly surprising they are not commonly seen in trailable sizes.

[Edwardn]

Thanks for the reply, i was wondering if weight would be a problem but i wasnt sure and i never thought about corrosion either. It looks now like if i want this type of boat i'll have to gear up for alum and learn how to weld it, i just ordered some catamaran study plans from Boden today so i'll have a look when they arrive.