: They could very well be the same species with different local names. Both are
: from the Populus genus.

: Aspen has historically been shied away from for a lot of building uses due to
: its very high moisture content. If left to dry on its own after milling it
: warps and twists in all sorts of funky ways. But if it has been kiln dried
: and covered with epoxy it should work well.

: grant

Aspen is often sold as poplar. They are soft and easy to work with, takes paints well. In the presence of water, both can rot quickly; that's why they are seldom use in boat construction. There are better, more durable wood to use. If you like the look and price of aspen/ poplar, go ahead -- just make sure they are throughtly coated with epoxy and recoat quickly if the coating is scratched.