How Much Crushed Stone for an 8x8 Hot Tub Pad?
How much crushed stone for an 8x8 hot tub pad: about 1.7 tons at 6 inches deep. The area is 64 square feet, which is 1.19 cubic yards at that depth.
Volume and tonnage calculator →The math
- Area: 64.0 sq ft.
- Depth in feet: 6 ÷ 12 = 0.500 ft.
- Cubic yards: 64.0 × 0.500 ÷ 27 = 1.19 yd³.
- Tons: × about 1.4 tons per yard = 1.7 tons.
The crushed stone calculator does this for any size.
Related: How Much Gravel for an 8x8 Hot Tub Pad?
Crushed stone needed by depth
| Depth | Cubic yards | Tons of crushed stone | Tons +10% |
|---|---|---|---|
| 4 in | 0.79 | 1.1 | 1.2 |
| 6 in | 1.19 | 1.7 | 1.8 |
| 8 in | 1.58 | 2.2 | 2.4 |
Stone for a hot tub pad
Hot tubs are heavy once full of water and people. A compacted stone pad of about 4 to 6 inches, perfectly level, works for many tubs, but check the manufacturer’s base requirements before you build.
Related: How Much Crushed Stone for a 10x10 Hot Tub Pad?
Before the stone goes in
Remove sod and roots, level the area and slope it slightly for drainage. Install edging so the stone stays inside the footprint.
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.
Planning the cost
Quarries and landscape suppliers set their own prices, and they change by region and season. Get the price per ton, the delivery fee and the minimum order. If two products will both work, compare cost per square foot at your depth rather than cost per ton.
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 for an 8x8 hot tub pad?
About 1.7 tons at 6 inches deep.
How many yards of crushed stone for an 8x8 hot tub pad?
About 1.19 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.
Do I need to compact it?
Yes for anything that carries weight. Compact in lifts of a few inches with a plate compactor.
Related guides
- Gravel Pad for a Hot Tub: Size, Depth, and Base
- Concrete Slab for a Hot Tub: Size, Thickness, Yards
- 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 Gravel for a 7x8 Hot Tub Pad?
- How Much Crusher Run for an 8x8 Hot Tub Pad?
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