A cubic yard of wet topsoil is heavier and more compact than a cubic yard of dry topsoil. You can picture the wet version as a pile 6.26 ft (1.91 m) wide and 31.5 in (80.1 cm) tall, while the dry version forms a pile 6.65 ft (2.03 m) wide and 28 in (71 cm) tall.

Biggest vs smallest
1.06× the size
1 yd³ of topsoil vs 1 yd³ of wet topsoil
Typical adult or standard sizes; real ones vary.