Question: what size are asbestos floor tiles?
Answer: If the tiles were installed between 1960 and 1980, there's a slight chance they contain asbestos. The flooring tiles are 9-inch, 12-inch, or 18-inch squares. The most popular size was 9-inch by 9-inch, but the two larger sizes were also installed in many homes. The tiles may appear stained or oily.