How Much Gravel for an 8x8 Greenhouse Floor?
How much gravel for an 8x8 greenhouse floor: about 0.8 tons at 3 inches deep. The area is 64 square feet, which is 0.59 cubic yards at that depth.
Volume and tonnage calculator →The math
- Area: 64.0 sq ft.
- Depth in feet: 3 ÷ 12 = 0.250 ft.
- Cubic yards: 64.0 × 0.250 ÷ 27 = 0.59 yd³.
- Tons: × about 1.4 tons per yard = 0.8 tons.
The gravel calculator does this for any size.
Related: How Much Crushed Stone for an 8x8 Greenhouse Floor?
Gravel needed by depth
| Depth | Cubic yards | Tons of gravel | Tons +10% |
|---|---|---|---|
| 2 in | 0.40 | 0.6 | 0.6 |
| 3 in | 0.59 | 0.8 | 0.9 |
| 4 in | 0.79 | 1.1 | 1.2 |
| 6 in | 1.19 | 1.7 | 1.8 |
Building the greenhouse base
A stone floor drains spilled water, holds some heat and is easy to rake clean. Many growers use about 3 inches of pea gravel or washed stone over fabric, with paver or concrete stepping paths if they roll carts.
Related: How Much #57 Stone for an 8x8 Greenhouse Floor?
Prep
Remove sod and roots, level the area and slope it slightly for drainage. Install edging so the stone stays inside the footprint.
Ordering and delivery
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. Gravel is a broad label, so confirm whether the yard means crushed or rounded stone and whether it carries fines. The scale ticket is the real weight; tons per yard here is a planning figure.
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.
Tools for the job
For anything bigger than a small path, rent a plate compactor; hand tampers cannot match it. A wheelbarrow, shovels, a hard rake and stakes with string are the rest of the kit. Wet the stone lightly before compacting so it binds.
Questions people ask
How many tons of gravel for an 8x8 greenhouse floor?
About 0.8 tons at 3 inches deep.
How many yards of gravel for an 8x8 greenhouse floor?
About 0.59 cubic yards.
How many tons of gravel 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 for a Greenhouse Floor: Best Stone, Depth and Tons
- 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 #57 Stone for a 6x8 Greenhouse Floor?
- How Much Pea Gravel for an 8x8 Greenhouse Floor?
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