Decking price comparison?

[compact]

Hi
Do you know of a good site that shows the different prices for wood for decking.
Even better if it gives pros and cons.

We're thinking either composite or Siberian Larch. However would be good to find a site with different woods and composites with the prices for easy comparison.

Ps thinking of cladding a new wall on the back of the carport to match

Thanks

 

[conny]

Where I work the constructors have fitted some composite stair treads, which are great when dry, but during the autumn/winter were prone to going green with lichen. Poor landscapers had to scrub it off every couple of days.