Tons of Asphalt per 100 Feet of 28 ft Road
Tons of asphalt per 100 feet of 28 foot road: about 51 tons at 3 inches compacted. The strip is 28 ft × 100 ft = 2,800 square feet. Long runs magnify small depth changes, so pin the depth down before ordering.
Asphalt tonnage calculator →Tons by depth
| Depth | Tons | Truckloads (~14 t) |
|---|---|---|
| 2 in | 34 | 3 |
| 3 in | 51 | 4 |
| 4 in | 68 | 5 |
The math
- Area: 28 × 100 = 2,800 sq ft.
- Volume at 3 in: 2,800 × 0.250 = 700 cu ft.
- × 145 lb ÷ 2,000 = 51 tons.
What goes into the section
At 28 feet wide, this is a two-lane road width. Paved roads sit on a compacted aggregate base, ordered separately from the asphalt. Crown the surface so water sheds to ditches on both sides.
Practical notes
- Phasing. Large tonnages are delivered over days; schedule spreading and compaction to keep up with trucks.
- Waste. Allow 5 to 10 percent.
- Hauling. Distance from the quarry or plant often costs as much as the material on long jobs; see asphalt hauling cost per ton.
Check other sizes with the asphalt tonnage calculator.
Where asphalt fits
Works well for:
- Driveways, parking pads and private lanes that need a smooth, sealed surface
- Overlays on old pavement that is cracked but still structurally sound
- Areas where snow will be plowed, since a paved surface does not throw stone
Less suited to:
- Ground that stays soft or wet, unless the base and drainage are fixed first
- Very small patches, where bagged cold patch is often simpler
- Jobs in cold weather, since hot mix needs warm temperatures to compact properly
Quick reference numbers
- Per inch over 100 sq ft: about 0.62 tons of asphalt (0.31 cubic yards).
- Per inch over 1,000 sq ft: about 6.2 tons.
- Another size for comparison: a 15x30 area at 4 inches takes about 11.1 tons.
- Weight used here: about 2.0 tons per cubic yard (roughly 145 lb per compacted cubic foot).
Where estimates go wrong
- Ordering exactly the math. Uneven ground and spillage nearly always need a little more than the flat calculation.
- Forgetting that compaction shrinks loose material. A loose 4-inch spread of a dense-graded stone may finish closer to 3 inches after rolling.
- Measuring only the main rectangle. Aprons, turnouts and curved edges add real square footage.
- Skipping drainage. Water sitting under any surface softens the base and leads to ruts and potholes.
Questions people ask
How many tons of asphalt per 100 feet of 28 ft road?
About 51 tons at 3 inches.
How many truckloads is that?
About 4 loads at roughly 14 tons each.
How many square feet is 100 feet of 28 ft road?
2,800 square feet.
Should I add extra for waste?
Yes, 5 to 10 percent is common.
Does this include the shoulders?
No. Measure shoulders and pullouts separately and add them.
Related guides
- How Many Tons in a Truckload of Asphalt?
- Asphalt Hauling Cost Per Ton: What Drives the Delivered Price
- Crushed Stone vs Gravel: Differences and Best Uses
- Tons of Asphalt per Mile of 28 ft Road
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