A proppant tower comprising: a main body configured to be in a substantially vertical orientation in a working position; a base mounted on a bottom end of the main body, such that the main body rests on the base when in the working position; a bin disposed within the main body; and an outlet having two ends, the first end radially extending from the main body below the bin and in fluid communication with the bin and the second end being open, such that particulates are discharged from the bin into the first end of the outlet and out of the second end of the outlet, wherein the outlet radially extends from the main body at a location on the main body that permits at least four proppant towers to be arranged about a single particulate collection device.