A wooden basement must be completely waterproofed.
If a house is built with a wooden basement, this essentially means that the house has a wooden foundation rather than a concrete or stone basement. The advantages of a wooden basement include cheaper construction costs, easier replacement of posts or beams, and the ability to repurpose materials if the house is demolished at any time. However, a basement made of wood is not as resistant to water damage as concrete, and wood is likely to rot after several years of being exposed to moisture. This type of basement is also not as consistently strong as a concrete basement, although if constructed correctly it is strong enough to adequately support the weight of a house.
A concrete basement is more expensive to build, but easier to maintain.
A wooden basement must be completely waterproofed to prevent moisture from entering the house. This can be expensive and time-consuming, negating the benefits of a wooden basement over a concrete basement. A concrete basement is more expensive to build initially and takes longer than a basement made of wood to complete, but once waterproofing is considered, the cost and time comparison is reasonably uniform. Wooden basements are more versatile than concrete ones and it is easier to make changes to wooden basements once they are built, but they will require more maintenance in the long run.
Wood is not as resistant to moisture as concrete.
While wooden basements are certainly adequate to support the weight of a home, over time, planks tend to warp with the weight of the materials above them. Concrete will not bend under weight if poured correctly, although it risks cracking after years of exposure to moisture and changing weather conditions. Concrete is also less susceptible to soil moisture than wood; the wood will need to be treated properly and removed after several years to resist soil moisture. If the home is in an area with prominent insect populations, the wood is also susceptible to insect and rodent damage.
The ideal wooden basement will be based on a concrete slab and an impermeable layer between the wood and the outside terrain. This eliminates the problem of soil moisture affecting the wood under the floor, and waterproofing will help extend the life of basement walls. This waterproofing can be expensive, however, which means a concrete basement can be a good choice. Aesthetically speaking, wooden basements are much more appealing, and hanging drywall or installing basement windows will be much easier, but that convenience comes at a cost.