A modular panel assembly for use with, e.g., a shower enclosure. The modular panel assembly includes a plurality of panels, each panel having a first side surface and a second side surface. The modular panel assembly also include a plurality of channel members, wherein each channel member is configured to be coupled to an edge portion of one or more panels. Additionally, a plurality of brackets are provided, wherein each bracket is configured to hold both the first side surface and the second side surface of two or more of the plurality of panels and an end portion of one or more of the plurality of channel members.