Question

In the U.S. market, three-quarter-inch- (19-millimeter-) thick hardwood flooring comes in standard widths of 1-1/2, 2, 2-1/4, and 3-1/4 inches (38, 51, 57, and 83 millimeters). What are the U.S. standard widths for half-inch- (13-millimeter-) thick hardwood flooring?

Answer

1-1/2 and 2 inches (38 and 51 millimeters).