How Much #57 Stone for an 8x12 Greenhouse Floor?
How much #57 stone for an 8x12 greenhouse floor: about 1.2 tons at 3 inches deep. The area is 96 square feet, which is 0.89 cubic yards at that depth.
Volume and tonnage calculator →The math
- Area: 96.0 sq ft.
- Depth in feet: 3 ÷ 12 = 0.250 ft.
- Cubic yards: 96.0 × 0.250 ÷ 27 = 0.89 yd³.
- Tons: × about 1.35 tons per yard = 1.2 tons.
The crushed stone calculator does this for any size.
Related: How Much Pea Gravel for an 8x12 Greenhouse Floor?
#57 stone needed by depth
| Depth | Cubic yards | Tons of #57 stone | Tons +10% |
|---|---|---|---|
| 2 in | 0.59 | 0.8 | 0.9 |
| 3 in | 0.89 | 1.2 | 1.3 |
| 4 in | 1.19 | 1.6 | 1.8 |
| 6 in | 1.78 | 2.4 | 2.6 |
Stone for a greenhouse
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 a 8x12 Patio?
Prep
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
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. #57 is a washed stone of roughly 1/2 to 1 inch with few fines; it drains fast but stays a little loose on its own. The scale ticket is the real weight; tons per yard here is a planning figure.
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.
Measuring the area
Measure length and width in feet at a few points and use the largest figures, since real sites are rarely square. For odd shapes, split the area into rectangles and circles, work out each one and add them together. Depth is the number most people underestimate: drive a stake, run a level string and measure down to the dug-out surface in several spots.
Questions people ask
How many tons of #57 stone for an 8x12 greenhouse floor?
About 1.2 tons at 3 inches deep.
How many yards of #57 stone for an 8x12 greenhouse floor?
About 0.89 cubic yards.
How many tons of #57 stone are in a cubic yard?
Roughly 1.35 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 Gravel for an 8x12 Greenhouse Floor?
- How Much Crushed Stone for an 8x12 Greenhouse Floor?
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