I had a Maine built Classic. Not to hi-jack the thread but with the polymers available today...you may want to look into that. Black UHMW or HDPE from McMaster-Carr will outlast the boat. You also may find the pvc pipe rail replacement I did with mine sufficient. I used a plumbing clip for poly pipe that would allow the rail to snap out if our dog would get a foot in their. Painted with Krylon fusion...any scuffs were easily repainted in minutes with that stuff....Here's a link
I have a 14 TDB. I just replaced the old oak rails this fall with Trex decking. It was easier than working with wood and will last forever. I used the brown . It blends right in with the grass.
My 17'er is a '96 Maine built came with black "nylon" rails,i see no reason to use wood when there are so many composites available. Not sure what wood was used on the original classics.
Wonder what Tony is using on the new boats.
I believe there were several variations of wood used in the Maine built boats. I would NOT use wood. As many have said plenty of composites to choose from now days.
We use a nylon black rod and stand offs and end caps now on them. Makes it easy to custom fit to any boat holes from a previous mounted rail and they are composite materials as well.
One thing to make sure is how to attach them. Some boats used bolts and some were screws. The tough part is many boats you cannot access from the inside which means that your going to have to cut them off and then use an oversized screw to reattach them. Size 12 or larger screws are possible just depends on the specific boat and if the holes are worn from loose rails or not.
Changing these can be easy or quite problematic it depends on each boats situation.
On the new models they will be bolted on and will be accessible from the inside I hope. I will know soon as we are just about done with a 14ft Sea Class build and will be working on all the details of the finishing soon.
Sorry for the late response we are very busy already this season and not much play time now days.