We give a method for computing upper and lower bounds for the volume of a non-obtuse hyperbolic polyhedron in terms of the combinatorics of the 1-skeleton. We introduce an algorithm that detects the geometric decomposition of good 3-orbifolds with planar singular locus and underlying manifold S (3). The volume bounds follow from techniques related to the proof of Thurston's Orbifold Theorem, Schlafli's formula, and previous results of the author giving volume bounds for right-angled hyperbolic polyhedra.