Best lightweight wood for boat swimdeck?

Hi people. Haven't been on the forum since 2007! Nice to be back. I'm looking for opinions and/or advice on what timber to use to build a swim deck for my boat (5.8m Whittley Cruiser). Whilst teak is the first thing to come to mind I was thinking WRC would be considerably lighter. If sealed wel it should last a good few yeas. Any opinions or alternative options?



Cheers,



Mark