Concrete cost guide
Bagged Concrete Cost
Bagged concrete costs about $5 to $8 per 80 lb bag in 2026, and since one 80 lb bag yields roughly 0.60 cubic feet, a full cubic yard takes about 45 bags — or $225 to $360 in bags alone before waste. That makes bagged concrete competitive for small jobs but expensive per yard for large ones once you factor in your own labor.
This guide compares bag sizes, shows how to estimate bag count, and pins down the point where ready-mix takes over. Use the bag calculator to convert your dimensions directly into a bag count and material cost.
Need project-specific numbers? Use the Bagged Concrete Cost Calculator.
Last updated June 10, 2026
Typical Cost Ranges
| Item | Typical Cost | Notes |
|---|---|---|
| 40 lb bag | About 0.30 cu ft | Small patching and fence posts |
| 60 lb bag | About 0.45 cu ft | Manageable lifting |
| 80 lb bag | About 0.60 cu ft | Best bag count efficiency |
What Drives the Cost
- Bag size: 80 lb bags give the lowest cost per cubic foot, but 40 and 60 lb bags are easier to carry and mix for occasional users.
- Number of bags: Material cost scales linearly with volume; the hidden cost is your time, since each bag must be mixed individually.
- Mixing equipment: A rented mixer speeds large bag jobs but adds rental cost; small jobs can be mixed in a tub or wheelbarrow.
- Waste: Add about 10% extra bags for spillage and uneven depth so you do not run short mid-pour and create a cold joint.
- Strength: Standard, high-early, and crack-resistant bagged mixes are priced differently; match the mix to the job rather than buying on price alone.
How To Estimate It
- Bags needed = required cubic feet / bag yield
- Bag cost = bags needed x bag price
When bagged concrete is the cheaper choice
Below about one cubic yard, bagged concrete almost always beats ready-mix because it dodges the short-load delivery fee and lets you pour on your own schedule. Fence posts, small footings, repairs, and short walkways are classic bag jobs.
Where bags stop making sense
Once a job needs more than roughly 40 to 50 bags, the labor of mixing each one by hand becomes the real cost, and the risk of inconsistent batches and cold joints rises. At that point a ready-mix short load is usually faster, more uniform, and competitive on total cost.
FAQs
How many bags are too many?
Once you are above 40 to 50 bags, compare ready-mix because mixing time and consistency become major issues.
Which bag size is cheapest?
80 lb bags often have the lowest cost per cubic foot, but only if you can lift and mix them safely.
How many 80 lb bags make a cubic yard?
About 45 bags before waste, since each 80 lb bag yields roughly 0.60 cubic feet and a cubic yard is 27 cubic feet.
How much does it cost to fill a yard with bags?
Roughly $225 to $360 in bags at $5 to $8 each for about 45 bags, before adding a 10% waste allowance.
Is bagged concrete as strong as ready-mix?
Properly mixed bagged concrete reaches its rated PSI, but consistency across many hand-mixed batches is harder to control than a single ready-mix load.