On the North wall, the dimension between fixtures and walls is which of the following?

On the North wall, the dimension between fixtures and walls is which of the following?

• A. 8 inches
• B. 4 inches
• C. 12 inches
• D. 6 inches

Answer: (A)

Clearance between a wall and a fixture is how much space you leave behind the fixture to fit the plumbing connections and still have room for installation and maintenance. Eight inches is the commonly used back clearance because it provides enough room for waste and supply lines, trap fittings, and valves behind the fixture, while keeping the front area comfortable and accessible. Four inches would be too tight for proper connections, twelve inches would waste usable space and disrupt layout, and six inches is less versatile for different configurations. So eight inches is the practical, standard choice for this wall in the given layout.

Clearance between a wall and a fixture is how much space you leave behind the fixture to fit the plumbing connections and still have room for installation and maintenance. Eight inches is the commonly used back clearance because it provides enough room for waste and supply lines, trap fittings, and valves behind the fixture, while keeping the front area comfortable and accessible. Four inches would be too tight for proper connections, twelve inches would waste usable space and disrupt layout, and six inches is less versatile for different configurations. So eight inches is the practical, standard choice for this wall in the given layout.