The wood can be divided into two families: soft woods and hard woods.

Soft Wood:

All types of pine species and a few other types (cedar, fir, sequoia). They are relatively inexpensive because of their quick rate of growth and their widespread presence in several countries. They are usually long and straight and therefore used predominantly in the construction industry for outdoor decks and pergolas, as well as in the paper industry.

Hard Wood:

Numerous types of hard-wood trees are used in the furniture and construction industries as well as external purposes mainly when high quality and unique specifications are required.
The hard-wood trees are more expensive because or their rarity, slow growth rate and scarce growing regions.
The growing regions also determine the tree’s color, shade and texture of wood.

The same type of tree may be grown on two different continents so the color and quality will be different due to the climate and minerals in the growing region.
There is no such thing as a good wood and a bad wood. The price of the tree is determined according to the rarity of the tree and demand. If there is a high demand, but a low uprooting limit (such as with teak or ebony), the price of the trees will skyrocket. In addition, the use of a certain tree is determined according to its suitability to the design and the requirements for which it will be used.