How Much Crushed Stone for a 6x6 Hot Tub Pad?
How much crushed stone for a 6x6 hot tub pad: about 0.9 tons at 6 inches deep. The area is 36 square feet, which is 0.67 cubic yards at that depth.
Volume and tonnage calculator →The math
- Area: 36.0 sq ft.
- Depth in feet: 6 ÷ 12 = 0.500 ft.
- Cubic yards: 36.0 × 0.500 ÷ 27 = 0.67 yd³.
- Tons: × about 1.4 tons per yard = 0.9 tons.
The crushed stone calculator does this for any size.
Related: How Much Gravel for a 6x6 Hot Tub Pad?
Crushed stone needed by depth
| Depth | Cubic yards | Tons of crushed stone | Tons +10% |
|---|---|---|---|
| 4 in | 0.44 | 0.6 | 0.7 |
| 6 in | 0.67 | 0.9 | 1.0 |
| 8 in | 0.89 | 1.2 | 1.4 |
Building the hot tub pad base
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
Clear vegetation, rake the soil level and compact it. Lay fabric overlapped at the seams and set edging before spreading the stone.
Ordering and delivery
If you haul it yourself, a typical half-ton pickup should carry only about half a cubic yard of stone, well under what the bed looks like it can hold. 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
Stone is usually priced per ton or per cubic yard, and delivery is often a separate charge based on distance. A full truckload can cost less per ton than a partial one, so it can pay to combine projects. Ask whether the quote includes tax, delivery and any small-load fee before you compare yards.
Tools for the job
A flat shovel, a steel rake, a wheelbarrow and a rented plate compactor cover most residential pads. A landscape rake or the back of a rake levels the top layer, and a long straightedge or a level string shows high and low spots before the final pass.
Questions people ask
How many tons of crushed stone for a 6x6 hot tub pad?
About 0.9 tons at 6 inches deep.
How many yards of crushed stone for a 6x6 hot tub pad?
About 0.67 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 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 Crusher Run for a 6x6 Hot Tub Pad?
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