Should I buy one extra?

Yes. Leftover concrete cures anyway, but running out mid-pour means a cold joint that is structurally weak.

🧱

Concrete Bag Calculator

Bags of premixed concrete needed to fill a given volume, in 40, 60 or 80 lb bag sizes.

No signup100% in your browserFree forever

Volume (m³)

Bag size

—

Should I buy one extra?: Yes. Leftover concrete cures anyway, but running out mid-pour means a cold joint that is structurally weak.