A floor tile comprising a base substrate and a laminate layer, wherein the base substrate comprises: a top layer with a laminate layer receiver on a top surface thereof; and a bottom layer with connecting means for engaging with connecting means of a base substrate of a further tile to form an interconnected flooring system, wherein the top layer of the base substrate extends over connecting means on at least one side of the base substrate, wherein the base substrate further comprises waterproofing means for engaging with waterproofing means of a base substrate of at least one further tile to provide a waterproof seal between the tile and at least one further tile, characterised in that the waterproofing means comprise: at least one upstanding flexible seal fin on a top surface of the bottom layer of the base substrate; a sealing channel on the underside of the top layer of the base substrate; and a protrusion depending from the sealing channel, wherein the upstanding flexible seal fin is for engaging with the sealing channel of a further tile, wherein the sealing channel is for accepting an upstanding flexible seal fin of at least one other further tile and wherein the protrusion is for engagement with yet a further tile to encourage the upstanding flexible seal fin of the tile with which it engages into a sealing channel of one of the other tiles. a top layer with a laminate layer receiver on a top surface thereof; and a bottom layer with connecting means for engaging with connecting means of a base substrate of a further tile to form an interconnected flooring system, wherein the top layer of the base substrate extends over connecting means on at least one side of the base substrate, wherein the base substrate further comprises waterproofing means for engaging with waterproofing means of a base substrate of at least one further tile to provide a waterproof seal between the tile and at least one further tile, characterised in that the waterproofing means comprise: at least one upstanding flexible seal fin on a top surface of the bottom layer of the base substrate; a sealing channel on the underside of the top layer of the base substrate; and a protrusion depending from the sealing channel, wherein the upstanding flexible seal fin is for engaging with the sealing channel of a further tile, wherein the sealing channel is for accepting an upstanding flexible seal fin of at least one other further tile and wherein the protrusion is for engagement with yet a further tile to encourage the upstanding flexible seal fin of the tile with which it engages into a sealing channel of one of the other tiles. at least one upstanding flexible seal fin on a top surface of the bottom layer of the base substrate; a sealing channel on the underside of the top layer of the base substrate; and a protrusion depending from the sealing channel, wherein the upstanding flexible seal fin is for engaging with the sealing channel of a further tile, wherein the sealing channel is for accepting an upstanding flexible seal fin of at least one other further tile and wherein the protrusion is for engagement with yet a further tile to encourage the upstanding flexible seal fin of the tile with which it engages into a sealing channel of one of the other tiles.