50 bags of 60 lb: the full 3,000 lb
50 bags of 60 lb mix weigh exactly 3,000 lb, so a 3,000 lb payload has nothing left for the driver. Count 200 lb for people and gear and it is 46 bags; count 600 lb and it is 40.
50 bags make 22.5 cubic feet, 67.5 square feet of 4 inch slab: enough for an 8 × 8 ft pad, which needs 48 bags. A cubic yard takes 60 bags of 60 lb mix, so one yard is 2 trips even at this payload.
Bags left after people and cargo
Payload is everything the truck carries: the driver, passengers, tools, a toolbox, a hitch and the bags. Take the rest off first.
| Already aboard | Payload left for bags | 40 lb bags | 60 lb bags | 80 lb bags |
|---|---|---|---|---|
| Nothing else aboard | 3,000 lb | 75 | 50 | 37 |
| 200 lb of people and cargo | 2,800 lb | 70 | 46 | 35 |
| 400 lb of people and cargo | 2,600 lb | 65 | 43 | 32 |
| 600 lb of people and cargo | 2,400 lb | 60 | 40 | 30 |
Use the payload on the sticker inside the driver's door of your own truck, not a figure for the model or the class. Bag weights are dry weights as sold.
Trips for a slab with 60 lb bags (3,000 lb payload)
Each row is a 4 inch slab with no waste added, at 50 bags a trip.
| Slab | Concrete | 60 lb bags | Trips | Weight of the slab |
|---|---|---|---|---|
| 8 × 8 ft | 21.3 ft³ | 48 | 1 | 3,200 lb |
| 8 × 10 ft | 26.7 ft³ | 60 | 2 | 4,000 lb |
| 10 × 10 ft | 33.3 ft³ | 75 | 2 | 5,000 lb |
| 10 × 12 ft | 40.0 ft³ | 89 | 2 | 6,000 lb |
| 12 × 12 ft | 48.0 ft³ | 107 | 3 | 7,200 lb |
| 12 × 16 ft | 64.0 ft³ | 143 | 3 | 9,600 lb |
Worked example
3,000 ÷ 60 = 50, so 50 whole bags. 50 × 60 = 3,000 lb, the full payload. 50 × 0.45 = 22.5 cubic feet of concrete.
Bags per load at other payloads
| Payload | 40 lb bags | 60 lb bags | 80 lb bags |
|---|---|---|---|
| 1,000 lb | 25 bags | 16 bags | 12 bags |
| 1,500 lb | 37 bags | 25 bags | 18 bags |
| 2,000 lb | 50 bags | 33 bags | 25 bags |
| 3,000 lb | 75 bags | 50 bags | 37 bags |
Enter your own payload and slab in the concrete weight calculator, or see how many bags of concrete equal a yard and how much concrete weighs.
Want to change anything else? The calculator above is the full Concrete Weight Calculator: edit any number and the results update instantly.
Tools & materials for this project
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Frequently asked questions
How many 60 lb bags of concrete can a truck with a 3,000 lb payload carry?
50 bags, which weigh 3,000 lb, if nothing else is aboard: 3,000 ÷ 60, rounded down. The driver, passengers and other cargo count against the payload, so with 200 lb of people and gear it is 46 bags.
How many 60 lb bags of concrete are in a cubic yard?
60, at about 0.45 cubic feet a bag. At 3,000 lb of payload that is 2 trips of up to 50 bags.
How much concrete do 50 bags of 60 lb mix make?
About 22.5 cubic feet (0.83 cubic yards), at 0.45 cubic feet a bag. That pours 67.5 square feet of slab 4 inches thick.
Related sizes and guides
Estimates only. Results assume standard materials and simple shapes. Supplier products vary, and the final call on quantity, structure and safety is yours. Check your local code and your supplier's guidance before ordering.