To stain a dollhouse floor, follow these steps:
Prepare the work area and choose a suitable wood stain.
Sand the floor lightly if needed and clean any dust or debris.
Apply a thin, even coat of stain in the direction of the wood grain.
Wipe off excess stain with a clean cloth to ensure a uniform color.
Allow the floor to dry completely according to the manufacturer's instructions.
Assess the color and apply additional coats if desired.
Optional: Seal the stained floor with a clear sealant or varnish for protection and a polished look. Remember safety precautions and test the stain on a small area before staining the entire floor.