Question

you need to make a closed top rectangular tank that is 19 inches wide, 30 inches deep and 18 inches high. how many square feet of steel are needed?

Answer 1

Length in feet multiplied by width in feet multiplied by height in feet divided by 27 equals cubic yards needed.

When dealing in inches: convert inches to feet by dividing by 12.

For example: pour a 25 ft. sidewalk 5 ft. wide and four inches deep.

(25’ x 5 ‘ x 0.333’) / 27 = 1.54 cubic yards

Note* we achieved 0.333 ft. by taking four inches and dividing by twelve.

Another example: yardage for an 80 ft. driveway, 24 ft. wide and 5 inches deep.

(80’ x 24’ x 0.416’) / 27 = 29.58 cubic yards