Yes, staining wood floors can be quite difficult—even for professionals. The process is finicky and sensitive to many variables such as wood species, moisture content, sanding quality, and application technique. Even small mistakes can lead to blotchy or uneven results, and if the stain doesn’t turn out right, the only real fix is to re-sand the entire floor and start over. That’s why staining is often best left to experienced floor specialists who understand how to control the many factors involved.