Softwoods (cedar, fir, pine, redwood)
The images below were taken from an image search to show the wood types. Most projects can be custom made with any wood type. Softwoods are not weaker than hardwoods. Hardwoods tend to be more expensive because of their grain and color.
Hardwoods (ash, birch, cherry, mahogany, maple, oak, poplar, teak, walnut)