When should I use Teak planks?

[Kardan]

I'm 44 at the moment (or will be once I've finished using my Oak planks)

[Eye!]

use oaks. Unless you are really rich and your going to buy the planks, then use teak planks when you can make teak larders

same with mohogany

[Zildjian]

Make Oak Larders, they're good and fast XP, I used them from what ever level you make make them, to level 60.