Spreading gravel looks like the simplest job a machine does, and it's the one people most often get wrong — not because the technique is hard, but because they ordered the wrong amount or spread it at inconsistent depth.
Both are avoidable with five minutes of arithmetic and a slower ground speed.
Calculate Before You Order
Getting the tonnage right matters more than anything you do with the machine.
Volume: length × width × depth, all in feet. A 100 × 12 foot area at 4 inches deep is 100 × 12 × 0.33 = 396 cubic feet, or about 14.7 cubic yards (divide by 27).
Weight: crushed stone typically runs somewhere around 1.3 to 1.5 tons per cubic yard depending on material and moisture — check with your quarry, because it varies. At 1.4 tons/yard, 14.7 yards is roughly 20 tons.
Add 5–10% for compaction and spread loss.
Ordering short means a second delivery charge. Ordering long means a pile you're finding a home for all summer.
What You'll Need
Attachments: Bucket · Leveler for consistent depth · Plate compactor if compaction matters
Optional: Stakes marked to depth, or a string line for large flat areas
Steps
1. Prepare the base. Gravel spread over soft, uncompacted, or organic ground will sink into it. For a driveway or pad, the subgrade should be firm and shaped before material goes down. Consider geotextile fabric over soft subgrade — it prevents the stone from disappearing into the soil, and it's cheap relative to replacing gravel every two years.
2. Set depth references. Drive stakes marked at finished depth around the area, or use a string line. This sounds fussy and it's the difference between consistent depth and guessing.
3. Dump in a grid, not a pile. Place bucket loads spaced across the area rather than building one large pile and pushing it out. Spreading from distributed piles is far faster and more even than moving a mountain.
4. Spread with the bucket. Two techniques:
Backdragging — raise the bucket slightly, tilt the cutting edge down, and drive backward. Excellent for leveling and the most-used method for finish work.
Forward pushing — bucket low and level, push material ahead. Faster for bulk distribution, less precise.
5. Level to depth. A leveler attachment gives more consistent results than a bucket for final grade. Multiple light passes beat one heavy pass, every time.
6. Compact in lifts. For anything over about 4 inches, compact in layers rather than all at once — a thick layer doesn't compact through to the bottom. Dampen lightly before compacting; dry stone doesn't lock together.
Common Mistakes
Spreading over soft ground. The stone disappears into the subgrade and you buy it twice.
Guessing at depth. Without reference stakes, depth varies substantially and you'll be short in some areas and deep in others.
One thick lift. Material below the top few inches stays loose. Compact in layers.
Spreading dry. Slightly damp material spreads and compacts noticeably better.
Wrong material. Clean washed stone stays loose and migrates under traffic. Dense-graded aggregate with fines locks together and compacts. Ask the quarry what's appropriate for your application.
Moving too fast. Ground speed drives finish quality more than any other factor.
Which Yellow Jacket Model
YJ1000 — fine for residential pads, paths, and small driveways.
YJ1200 — better if you're moving significant tonnage. More per bucket means fewer trips.
YJ2000 — for commercial volume or long haul distances from the pile.
FAQ
How deep should gravel be?
Depends entirely on the application and the subgrade. Light-duty paths need less; a driveway carrying vehicles typically needs a base layer plus a surface course. Ask your quarry or a local contractor what's standard for your soil and traffic — it varies considerably by region.
How many tons in a yard?
Roughly 1.3–1.5 tons per cubic yard for most crushed stone, but confirm with your supplier. Material and moisture both move the number.
Can I spread gravel over grass?
You can, but the organic layer will decompose and the stone will settle unevenly. For anything permanent, strip the sod first or use geotextile fabric.
Do I need to compact it?
For driveways and anything carrying traffic, yes. For decorative areas and landscape beds, usually not.
How much can it spread in an hour?
Depends on haul distance, bucket size, and how precise the finish needs to be. What most owners find is that spreading stops being the bottleneck — ordering and delivery become the constraint.