How the math works
Area: 12 ft × 10 ft = 120 sq ftVolume @ 4": 120 × (4 ÷ 12) = 40.00 cu ftAdd 10%: 40.00 × 1.10 = 44.00 cu ftCubic yards: 44.00 ÷ 27 = 1.63 yd³Tons: 1.63 × 1.4 = 2.28 tonsTruck loads: 5.70 tons ÷ 15 tons per tandem = 1
Trade pro tips
- At 4" deep, 10x12 takes 2.28 tons — a single dump truck delivery covers it.
- Build in layers: 4" of #3 (2"–3") stone, 4" of #57, then 2" of crusher run / dense grade on top.
- Lay non-woven geotextile over clay soil first — it stops stone from sinking.
- Crown the driveway ½" per foot so water sheds to the sides.
- Spread with a box blade and compact each layer before the next.
Frequently asked questions
How many tons of gravel do I need for a 10x12 driveway?
At 4" deep: 2.28 tons. At 6": 3.42 tons. A complete 3-layer driveway (4" #3 + 4" #57 + 2" crusher run) is 5.70 tons. All include 10% extra.
How many cubic yards of gravel for 10x12?
2": 0.81 yd³; 4": 1.63 yd³; 6": 2.44 yd³; 8": 3.26 yd³. 10x12 is 120 sq ft.
How many truck loads of gravel for a 10x12 driveway?
A tandem dump truck carries about 15 tons. 10x12 at 4" (2.28 t) is 1 load; the full 3-layer build (5.70 t) is 1 load.
How much does a 10x12 gravel driveway cost?
Stone alone at 4" is about $96 (~$55/yd³). A 3-layer build runs roughly $224 in material plus 15 sq yd of fabric; delivery and grading are extra.