20 cubic feet of topsoil is about the size of a refrigerator. When poured into a loose pile, it is 6.02 ft (1.84 m) wide and 25.3 in (64.2 cm) tall.

Volume
150 gallons
150 gal (566 L)
about the size of a refrigerator
Topsoil typically ranges 1–1.4 g/mL depending on how it's packed. A firmly packed scoop weighs more.