How Much Crushed Stone Under a 16x16 Deck?
How much crushed stone under a 16x16 deck: about 3.3 tons at 3 inches deep. The area is 256 square feet, which is 2.37 cubic yards at that depth.
Volume and tonnage calculator →The math
- Area: 256.0 sq ft.
- Depth in feet: 3 ÷ 12 = 0.250 ft.
- Cubic yards: 256.0 × 0.250 ÷ 27 = 2.37 yd³.
- Tons: × about 1.4 tons per yard = 3.3 tons.
The crushed stone calculator does this for any size.
Related: How Much Pea Gravel Under a 16x16 Deck?
Crushed stone needed by depth
| Depth | Cubic yards | Tons of crushed stone | Tons +10% |
|---|---|---|---|
| 2 in | 1.58 | 2.2 | 2.4 |
| 3 in | 2.37 | 3.3 | 3.7 |
| 4 in | 3.16 | 4.4 | 4.9 |
| 6 in | 4.74 | 6.6 | 7.3 |
Stone for a deck
Under a deck, stone is a weed and moisture barrier rather than a structural layer. Slope the soil away from the house, lay fabric and spread 2 to 3 inches of washed stone that drains quickly.
Related: How Much #57 Stone Under a 16x16 Deck?
Prep
Clear vegetation, rake the soil level and compact it. Lay fabric overlapped at the seams and set edging before spreading the stone.
Buying the stone
Most quarries and landscape yards deliver by the ton; ask whether there is a minimum and a delivery fee, and where the driver can dump without damaging your lawn. Crushed stone has angular faces that lock together under a compactor, which is why it holds a pad shape. Round up by about 10 percent for compaction and uneven ground.
Measuring the area
Use a long tape and measure each side twice. If the ground slopes, measure depth at the high and low ends and average them. Irregular outlines can be broken into simple rectangles, triangles and circles; add the pieces for the total square footage before converting to tons.
Common mistakes
People often forget that compaction reduces volume, so they come up short. Others order clean, round stone where a packable crushed stone with fines would have stayed put. Finally, dumping the whole load in one pile far from the work area adds hours of wheelbarrow trips.
Questions people ask
How many tons of crushed stone under a 16x16 deck?
About 3.3 tons at 3 inches deep.
How many yards of crushed stone under a 16x16 deck?
About 2.37 cubic yards.
How many tons of crushed stone are in a cubic yard?
Roughly 1.4 tons for planning, but suppliers vary with stone size and moisture.
Should I put landscape fabric under the stone?
On soft or clay soil, a woven geotextile keeps stone from sinking into the dirt and makes the layer last longer.
Related guides
- Gravel Under a Deck: Weeds, Drainage, and Depth
- How Much Does a Ton of Gravel Cover? Depth Chart
- Tons to Cubic Yards for Gravel: Conversion Chart
- Crushed Stone vs Gravel: Differences and Best Uses
- Geotextile Fabric for Driveways: Woven vs Nonwoven and How Much You Need
- Compacting a Driveway Gravel Base in Lifts
- How Much Pea Gravel Under a 14x16 Deck?
- How Much Gravel Under a 16x16 Deck?
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