Remove furniture, rugs, curtains, pictures, and any other conveniently removable items
Complete wall covering and painting project before you refinish the floor.
Provide adequate ventilation during sanding and refinishing.
If the room has a large doorway, cover it with a dropcloth or plastic covering.
Stuff extra towels or rags under bottoms of exit or closet doors and cover all air vents.
NEVER stop the sander with…