26928 pebbles for the minimum depth.
1485
540 feet2
You would need 8.
The answer will depend on the depth to which the area is covered.
To determine how much gravel is needed to fill an area of 10 by 5 feet, you first calculate the area by multiplying the length and width: 10 feet × 5 feet = 50 square feet. Next, decide on the desired depth of the gravel fill (for example, 3 inches or 0.25 feet). Multiply the area by the depth to find the volume in cubic feet: 50 square feet × 0.25 feet = 12.5 cubic feet of gravel required.
Another 53.75 square feet of tile would be needed.
1485
540 feet2
You would need 8.
The answer will depend on the depth to which the area is covered.
I think perhaps 2250 blocks .
64 cuft, about 2 and a third cubic yards
13.2, you need to buy 14.
18ft³
100
37.33 cubic feet
100