How Much Gravel for 150 Square Feet?
How much gravel for 150 square feet depends on depth. At 4 inches you need about 1.85 cubic yards, roughly 2.6 tons at 1.4 tons per yard. Each inch of depth over 150 square feet adds about 0.46 yards.
Volume and tonnage calculator →Gravel for 150 sq ft by depth
| Depth | Cubic yards | Tons | Tons +10% |
|---|---|---|---|
| 2 in | 0.93 | 1.3 | 1.4 |
| 3 in | 1.39 | 1.9 | 2.1 |
| 4 in | 1.85 | 2.6 | 2.9 |
| 6 in | 2.78 | 3.9 | 4.3 |
Working it out
- 150 sq ft × (4 ÷ 12) ft = 50.0 cubic feet.
- ÷ 27 = 1.85 cubic yards.
- × 1.4 tons per yard = 2.6 tons.
About gravel
Because ’gravel’ covers so many products, the weight per yard moves with stone size and how much fine material is in the pile. Rounded stone with no fines rolls under tires; crushed stone with fines locks together. Most suppliers will quote 1.3 to 1.5 tons per yard for this material.
Before the truck comes
- Measure odd shapes in pieces. Split curves and L-shapes into rectangles and add them.
- Add a margin. About 10 percent covers compaction and low spots.
- Bulk or bags. Bulk delivery is the practical choice here.
- Prep first. Remove sod, compact the subgrade and set edging before the stone arrives.
Use the volume and tonnage calculator for any other size.
Good and poor uses for gravel
Good uses:
- Rural driveways and lanes where low upfront cost matters
- Drainage areas and around downspouts
- Temporary access while a site is under construction
Think twice for:
- Steep slopes, where loose stone washes downhill
- Spots plowed often, since plows push gravel into the lawn
- Areas next to doors, because stone tracks inside
Quick reference numbers
- Per inch over 100 sq ft: about 0.43 tons of gravel (0.31 cubic yards).
- Per inch over 1,000 sq ft: about 4.3 tons.
- Another size for comparison: a 12x24 area at 3 inches takes about 3.7 tons.
- Weight used here: about 1.4 tons per cubic yard.
Mistakes that throw off the order
- Forgetting that compaction shrinks loose material. A loose 4-inch spread of a dense-graded stone may finish closer to 3 inches after rolling.
- Using inches as if they were feet. Depth has to be divided by 12 before you multiply; skipping that step inflates the order twelvefold.
- Mixing up cubic yards and tons. Yards are volume, tons are weight; convert with the product’s weight per yard.
- Measuring only the main rectangle. Aprons, turnouts and curved edges add real square footage.
Questions people ask
How many tons of gravel for 150 square feet?
About 2.6 tons at 4 inches deep.
How many cubic yards of gravel for 150 square feet?
About 1.85 yards at 4 inches.
How much gravel for 150 square feet at 2 inches?
About 1.3 tons, or 0.93 cubic yards.
How much does a yard of gravel weigh?
About 1.3 to 1.5 tons.
Should I add extra?
Yes, about 10 percent is a common allowance.
Related guides
- How Much Does a Ton of Gravel Cover? Depth Chart
- Tons to Cubic Yards for Gravel: Conversion Chart
- How Much Does a Ton of Gravel Cover? Depth Chart
- How Much Gravel for 100 Square Feet?
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