How Many Pails Fit in a 20GP? Container Loading for Water-Based Paint

Water-based coatings have a density of roughly 1.4–1.5 kg/L.

A 20GP is limited by payload, not volume: expect about 800–820 pails of 20L (21–22 tonnes).

Plan your first order around the weight ceiling, not the cubic capacity, and you will avoid the classic surprise of a half-empty container that cannot legally be loaded further.