A profile system for an entrance system, the profile system comprising: a first profile arrangement; a second profile arrangement; and an interconnecting element, wherein the first profile arrangement is connectable to the second profile arrangement by means of the interconnecting element for assembling a support system or movable door member of an entrance system, wherein each of the first and second profile arrangements (100, 200) comprises: a hollow profile element, and a connecting member attached to a transversal end of the profile element, characterised in that the connecting member comprises a pair of connection flanges protruding in a longitudinal direction of the profile element from the transversal end of the profile element, wherein the connecting member comprises an inwardly extending portion arranged to be inserted into the profile element, wherein the inwardly extending portion comprises two parallel and longitudinally extending phases for attachment to the profile element, whereby at least one of the connection flanges comprises a transversally protruding guiding element, and wherein the interconnecting element comprises a first guiding track for slidingly receiving the protruding guiding element of the first profile arrangement in a transversal direction of the first profile arrangement. a first profile arrangement; a second profile arrangement; and an interconnecting element, wherein the first profile arrangement is connectable to the second profile arrangement by means of the interconnecting element for assembling a support system or movable door member of an entrance system, wherein each of the first and second profile arrangements (100, 200) comprises: a hollow profile element, and a connecting member attached to a transversal end of the profile element, characterised in that the connecting member comprises a pair of connection flanges protruding in a longitudinal direction of the profile element from the transversal end of the profile element, wherein the connecting member comprises an inwardly extending portion arranged to be inserted into the profile element, wherein the inwardly extending portion comprises two parallel and longitudinally extending phases for attachment to the profile element, whereby at least one of the connection flanges comprises a transversally protruding guiding element, and wherein the interconnecting element comprises a first guiding track for slidingly receiving the protruding guiding element of the first profile arrangement in a transversal direction of the first profile arrangement. a hollow profile element, and a connecting member attached to a transversal end of the profile element, characterised in that the connecting member comprises a pair of connection flanges protruding in a longitudinal direction of the profile element from the transversal end of the profile element, wherein the connecting member comprises an inwardly extending portion arranged to be inserted into the profile element, wherein the inwardly extending portion comprises two parallel and longitudinally extending phases for attachment to the profile element, whereby at least one of the connection flanges comprises a transversally protruding guiding element, and wherein the interconnecting element comprises a first guiding track for slidingly receiving the protruding guiding element of the first profile arrangement in a transversal direction of the first profile arrangement.