  We provide a lower bound on the volume of the compactified mapping torus of a
strongly irreducible end-periodic homeomorphism f. This result, together with
work of Field, Kim, Leininger, and Loving, shows that the volume of the
compactified mapping torus of f is comparable to the translation length of f on
a connected component of the pants graph, extending work of Brock in the
finite-type setting on volumes of mapping tori of pseudo-Anosov homeomorphisms.
