Final answer:
Subway tiles measuring 3x6 inches can have either 1/16 inch or 1/8 inch spacing for grout lines, depending on the desired aesthetic. 1/16 inch spacing results in a sleek look with less visible grout, while 1/8 inch spacing offers a traditional look with more visible grout lines.
Step-by-step explanation:
The student is asking about the appropriate spacing size for subway tiles that measure 3x6 inches. This question is related to tile installation and home improvement. When it comes to tile spacing sizes, 1/16 inch spacing is typically used for a smaller grout line, which provides a more seamless look to the tiling. Alternatively, 1/8 inch spacing creates wider grout lines and is often used for a more pronounced tile pattern. Neither of the 'feet' options (3x6 feet with 1/16 inch spacing or 3x6 feet with 1/8 inch spacing) are standard for subway tiles, as subway tiles are typically not measured in feet but in inches.
In conclusion, for the subway tile size of 3x6 inches, both 1/16 inch spacing (Option A) and 1/8 inch spacing (Option B) are technically correct. It depends on the aesthetic the installer is going for. If a sleeker and smoother look is desired with less visible grout, then 1/16 inch spacing is suggested. For a more traditional look with more visible grout, 1/8 inch spacing would be better.