Generally speaking wood flooring is not a good idea for wet areas as wood is easy to get damped and then causes a series of unfavorable phenomena such as mildew, deformation and expansion. If you do want to use wood flooring, it is better to use engineered wood flooring or laminated wood flooring. Because the top surface of these flooring is fully waterproof, and when tightly seamed, water can pool on the surface for short periods of time without harm.
Engineered wood: Engineered wood performs better than laminate flooring because its base is of a sturdier, more water-resistant plywood material. Engineered wood will not stand up to long periods of standing water, but occasional puddling is not a problem. Manufacturers of engineered wood flooring may warranty their products against moisture damage, but usually stipulate that spills and splashes need to be wiped up immediately. Like other floor coverings in this category, engineered wood is not a good choice where standing water is an ongoing likelihood.
Laminate flooring: This artificial product performs better than solid wood flooring in moisture tests. But laminate flooring uses a fiberboard core that will swell and blister when it comes in contact with water. Any moisture that passes through the seams of a laminate floor can ruin the installation. Even laminate flooring sold as "water-resistant" or "waterproof" usually comes with the caution that spills and splashes need to be wiped up immediately.