How Much Recycled Concrete Aggregate for a 12x90 Driveway?
A 12 by 90 foot driveway is 1,080 square feet. How much recycled concrete aggregate for a 12x90 driveway depends on depth: at 4 inches it is about 13.33 cubic yards or 17.3 tons. Suppliers usually sell by the ton, so the tonnage is the number to give them.
Volume and tonnage calculator →The math for a 12x90 driveway
- Area: 12 × 90 = 1,080 sq ft.
- Depth in feet: 4 ÷ 12 = 0.333 ft.
- Cubic feet: 1,080 × 0.333 = 360.0 cu ft.
- Cubic yards: ÷ 27 = 13.33 yd³.
- Tons: × 1.3 = 17.3 tons.
The volume and tonnage calculator does this for any size.
Recycled concrete aggregate needed by depth
| Depth | Cubic yards | Tons (approx.) | Tons +10% |
|---|---|---|---|
| 3 in | 10.00 | 13.0 | 14.3 |
| 4 in | 13.33 | 17.3 | 19.1 |
| 6 in | 20.00 | 26.0 | 28.6 |
About recycled concrete aggregate
Recycled concrete aggregate is crushed old concrete. It compacts well and often costs less than virgin stone, which makes it a common driveway and pad base. Ask your supplier for their own tons-per-yard figure, since stone source and moisture shift it.
Preparing the driveway
Strip sod and soft topsoil, grade for drainage and compact the subgrade before any stone goes down. Gravel drives last longer with a compacted base layer under the top stone and a slight crown so water runs off. This driveway sees car and truck traffic, so match the depth to that load rather than to the minimum.
Ordering tips
- Round up. Compaction and uneven ground eat material. Adding about 10 percent is common.
- Delivery size. 19.1 tons may take more than one typical dump truck load; small loads may carry a delivery fee. See how many tons of gravel in a dump truck.
- Bulk vs bags. At this size bulk delivery is usually the practical choice.
- Where it drops. Have the truck dump as close to the driveway as firm ground allows.
Where recycled concrete aggregate fits
Good uses:
- Driveway and pad bases
- Temporary construction entrances
- Fill under slabs when compacted in lifts
Think twice for:
- Near ponds, streams or sensitive plants, since fresh crush can raise pH
- Decorative top layers
- Drainage layers, unless the product is clean and screened
Quick reference numbers
- Per inch over 100 sq ft: about 0.40 tons of recycled concrete aggregate (0.31 cubic yards).
- Per inch over 1,000 sq ft: about 4.0 tons.
- Another size for comparison: a 12x24 area at 2 inches takes about 2.3 tons.
- Weight used here: about 1.3 tons per cubic yard.
Common estimating mistakes
- Using inches as if they were feet. Depth has to be divided by 12 before you multiply; skipping that step inflates the order twelvefold.
- Measuring only the main rectangle. Aprons, turnouts and curved edges add real square footage.
- Ignoring the base. A thin surface layer over soft soil fails early no matter how much material is on top.
- Mixing up cubic yards and tons. Yards are volume, tons are weight; convert with the product’s weight per yard.
Questions people ask
How many tons of recycled concrete aggregate for a 12x90 driveway?
About 17.3 tons at 4 inches deep, or 19.1 tons with 10 percent extra.
How many cubic yards is a 12x90 driveway at 4 inches?
About 13.33 cubic yards.
How much does a cubic yard of recycled concrete aggregate weigh?
Usually around 1.2 to 1.4 tons, depending on stone size, fines and moisture.
How deep should recycled concrete aggregate be for a driveway?
The table above shows 3 to 6 inches. Shallower depths suit top dressing; deeper depths suit new installs and heavier use.
How many square feet is 12x90?
1,080 square feet.
Related guides
- Crushed Stone vs Gravel: Differences and Best Uses
- Tons to Cubic Yards for Gravel: Conversion Chart
- How Many Tons of Gravel in a Dump Truck? Loads and Coverage
- How Much Does a Ton of Gravel Cover? Depth Chart
- How Much Recycled Concrete Aggregate for a 12x75 Driveway?
- How Much Recycled Concrete Aggregate for a 12x80 Driveway?
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