How Much Pea Gravel for an 8x8 Greenhouse Floor?
How much pea 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 Gravel for an 8x8 Greenhouse Floor?
Pea gravel needed by depth
| Depth | Cubic yards | Tons of pea 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 Crushed Stone for an 8x8 Greenhouse Floor?
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
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. Pea gravel is small and rounded, comfortable underfoot, and needs edging because it rolls. Round up by about 10 percent for compaction and uneven ground.
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.
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.
Questions people ask
How many tons of pea gravel for an 8x8 greenhouse floor?
About 0.8 tons at 3 inches deep.
How many yards of pea gravel for an 8x8 greenhouse floor?
About 0.59 cubic yards.
How many tons of pea 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 Crushed Stone for a 6x8 Greenhouse Floor?
- How Much #57 Stone for a 6x8 Greenhouse Floor?
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