Green treated
well their are many types of expensive wood but my advice is if it is rare its expensive
Walnut is one of the most expensive American woods. Teak is one of the most expensive international woods. Wood has become popular and is used in flooring.
agarwood
Sandalwood
It costs about $300 per sheet
supply&demand
Teak wood seems pretty expensive. It is valuable for its elegance and durability.It has a significant historical background. Teak wood has some natural properties that most other woods don't have.
the Americas cup it is on average 100 million dollars per boat of a campaign
Throughout history, trade has been used to import materials from Europe to the Americas. For instance, sugar, wood, and coal was imported to the Americas.
A shed can be made out of almost any wood. Most are softwoods so the most expensive will be well seasoned fine grained softwood. Of course, there is nothing to stop you building a shed with hardwood. It's slower growing so they are far more expensive than most softwoods. Lumber such as oak would be a fine choice as it needs no preservatives and will last for many years. It is unlikely that there will be a more hard wearing wood than oak so that is probably going to be the most expensive wood that is still a sensible choice.
Not necessarily, as it all depends on the type of wood you are interested in purchasing. Most "pine furniture" is very inexpensive, especially if the wood is unfinished on the surface.
What ever wood works! In most cases they will use the least expensive wood available that will make the appropriate strength boxes.