According to traditional Feng Shui theory, stairs should not be built in the West. This is because the West is the "wealth" position and should be kept intact and stable, and stairs can destroy this integrity and cause wealth to be lost. However, modern Feng Shui theory pays more attention to practical effects and comfort. It is believed that as long as you pay attention to the Feng Shui and design of the stairs and avoid directly facing the door, it is okay to build stairs in the West.
Therefore, deciding whether to build stairs in the West requires comprehensive consideration of the traditional and modern Feng Shui theory, as well as the needs of actual residential design. If your home follows traditional Feng Shui theory, it is best not to build your stairs in the West. If you're more concerned with practicality and comfort, consider building a staircase in the West, but make sure the design and location of the staircase comply with modern Feng Shui theory.