Browsing the web for alternatives to teak for the exterior of a boat, I didn't really find anything I'd be comfortable using in its place. I saw some who used Honduras mahogany for handholds or companionway hatches but I would think that would only work if you kept the wood properly varnished. Or can mahogany hold up to the rigors of the sea? Are there any other woods that can?

At a boat show I saw sapele used on the interior of a Blue Jacket 40. The Sabre 456 used cherry.

We've been looking at buying an 80's sailboat. Some of the pics I've seen tell me there may be some replacement of wood components needed but we're steering clear of structural repair work. But there have been a few where an interior modification could give better sleeping quarters, usually in the aft cabin. When it comes to boat interiors, are you usually free to use any hardwood?