Abstract: A modular fire pit apparatus provides, in at least one embodiment, a tray portion, a plurality of wall panels, a plurality of panel edge locks, and a lid portion. The wall panels are selectively engagable about a perimeter of the tray portion in a substantially vertical orientation, while also able to be arranged in a substantially horizontal orientation and stacked within the tray portion. The panel edge locks are configured for removable engagement with adjacently positioned ones of the wall panels. The lid portion is capable of removable engagement with the tray portion when the wall panels are stacked therewithin, while being further configured for removable engagement with a top edge of the wall panels when the wall panels are engaged about the perimeter of the tray portion. A bottom surface of the tray portion provides a set of legs configured for being selectively extended.