Deck support beams

[ed c.]

What type of wood was used for the deck beams as constructed by Bertram?

[Charlie J]

I believe it was mahogany

[mike ohlstein]

When a couple of mine showed signs of weakness, I sistered them all with 5/4" mahogany.

[Navatech]

There's a reason mahogany is so popular in marine applications... IOW, you can't go wrong with mahogany...

Having said that, personally I would go with a prefabricated structural FRP U shaped profile...

[ed c.]

Thanks to everyone. My son and I thought the same.

[JimmyG]

I used Coosa, never rot

[John Vyn]

I had my deck up to replace the fuel tank. Some of the floor supports were less than stellar. So I replaced all with structural channel from McMaster Carr. They worked wonderful. I bonded them to the stern and cut the channel to make vertical posts tha were bolted through the stringers and the floor beams. Strong and never will it rot.