The plans for a building you're working on call for the installation of a 10″-thick concrete block wall. The usual size for a footing that would be used with such a wall would be 8″ deep by _______ wide.
A. 18″
B. 16″
C. 24″
D. 20″
Is it C?
C. Yes
To determine the width of the footing for a 10″-thick concrete block wall, we need to consider the best practices for footing design. Typically, the width of the footing should be at least twice the width of the wall it is supporting.
Since the wall is 10″ thick, the width of the footing should be at least 2 times 10″, which is 20″.
Therefore, the correct answer is D. 20″.
To determine the correct answer, we need to understand the typical requirements for a footing when installing a 10″-thick concrete block wall.
A footing is a structural component that supports the weight of the wall and transfers it to the ground. It helps distribute the load evenly and prevents uneven settlement. The width of the footing is determined by factors such as the type of soil, the height and weight of the wall, and local building codes.
In this case, we are dealing with a 10″-thick concrete block wall. The general rule of thumb is that the width of the footing should be at least twice the width of the wall. Therefore, we need to calculate 10″ x 2 = 20″.
From the given options, we can see that option D, 20″, matches our calculated width.
So, the correct answer is D.