A rectangular foundation area is 2013.94 sq ft with three voids totaling 170.75 sq ft; the net area is what?

A rectangular foundation area is 2013.94 sq ft with three voids totaling 170.75 sq ft; the net area is what?

• A. 2013.94
• B. 1843.19
• C. 1725.00
• D. 1850.00

Answer: (B)

The amount you pour is found by subtracting the voids from the full foundation area. Net area = gross area minus voids. Here, the rectangular foundation covers 2013.94 sq ft, and the three voids total 170.75 sq ft. So, 2013.94 − 170.75 = 1843.19 sq ft. (Breakdown: 2013 − 170 = 1843, and 0.94 − 0.75 = 0.19, giving 1843.19.) The net area, the solid portion left after removing voids, is 1843.19 square feet. This is the area used for estimating concrete volume or reinforcement.

The amount you pour is found by subtracting the voids from the full foundation area. Net area = gross area minus voids. Here, the rectangular foundation covers 2013.94 sq ft, and the three voids total 170.75 sq ft. So, 2013.94 − 170.75 = 1843.19 sq ft. (Breakdown: 2013 − 170 = 1843, and 0.94 − 0.75 = 0.19, giving 1843.19.) The net area, the solid portion left after removing voids, is 1843.19 square feet. This is the area used for estimating concrete volume or reinforcement.