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3.8 cubic feet of peat moss is about the size of a wheelbarrow load. When poured into a loose pile, it measures 3.46 ft (1.05 m) wide and 14.5 in (36.9 cm) tall.

Volume
28.4 gallons
28.4 gal (108 L)
about the size of a wheelbarrow load
Density estimated by AI from typical values. Peat moss typically ranges 0.12–0.28 g/mL depending on how it's packed. A firmly packed scoop weighs more.