wood timbers on concrete deck 1

[bob96]

Have a residential bridge where wood timbers are to be the finish flooring/decking. The structure of the deck is steel beams supporting a concrete on metal deck. As far as the wood timbers are there any recommendations for longevity of the timbers. Probably want to put spacers (composite material) between concrete and timbers to prevent rain water from collecting at base of timbers. Any other recommendations?

 

[MiketheEngineer]

You will have moisture problems - because all kinds of junk will fall between the timbers - get wet and stay there!!

Why even have the concrete deck or for that matter why have the timbers. Why both??

If it is for looks - you might finish the concrete deck with a pleasant pattern - even wood grained??