Bag coverage comes down to one number per size: an 80 lb bag yields 0.6 cubic feet of concrete, a 60 lb bag yields 0.45 cubic feet and a 40 lb bag yields 0.30 cubic feet. Divide your project volume in cubic feet by the yield and you have your bag count, always rounding up. This is a sample post with placeholder text, and the full guide will replace it soon.
