A box configuring tool includes a base having a planar surface, a first stop positioned at a first end of the base, and a second stop positioned at a second end of the base opposing the first end of the base. The tool also includes a pair of spaced-apart walls coupled to the base to define an open-ended chute along the base's planar surface. The open-ended chute is disposed between the first stop and the second stop. The open-ended chute has a tapered-width portion contiguous with a constant-width portion.