  We study non-topological, charged planar walls (Q-walls) in the context of a
particle physics model with supersymmetry broken by low-energy gauge mediation.
Analytical properties are derived within the flat-potential approximation for
the flat-direction raising potential, while a numerical study is performed
using the full two-loop supersymmetric potential. We analyze the energetics of
finite-size Q-walls and compare them to Q-balls, non-topological solitons
possessing spherical symmetry and arising in the same supersymmetric model.
This allow us to draw a phase diagram in the charge-transverse length plane,
which shows a region where Q-wall solutions are more stable than Q-balls.
