Abstract: A floor panel may include a bottom layer and an upper layer overlying the bottom layer. The bottom layer may have first and second edges, and the bottom layer may include at least one male protrusion on the first edge, and have at least one female protrusion receptacle on the second edge corresponding to a shape of the at least one male protrusion. The bottom layer may further include at least one male lip on the second edge, and have at least one female lip receptacle on the first edge corresponding to a shape of the at least one male lip. The upper panel may vertically overly the at least one female lip receptacle and the at least one female protrusion receptacle.