How can I tell if my deck is made of redwood?

Question

The deck was here when I moved in. How can I tell what type of wood it's made from?

Answer 1

Have a carpenter who knows wood check it out.  Then you will know for certain.

Answer 2

redwood is a very soft wood,pick a hidden area and scratch the wood to get below the weathering the wood should appear rust red, it could be redwood or cedar, smelling  the fresh scratch should verify which wood it is