A rail system for providing one or more removal edges and/or removal surfaces for plastering a building wall , said rail system comprising at least one rail , which extends along a rail axis (S) and which has a connection structure at a rear side facing perpendicular to the rail axis (S) and a removal edge and/or a removal surface at a front side opposite said rear side, and at least two setting elements which each extend along a setting element axis (A) from a fastening section to a connection section and which are configured to be fastened, on the one hand, with their respective fastening section , in particular with the setting element axis (A) oriented perpendicular to the building wall , to the building wall and, on the other hand, to be connected with their respective connection section to the connection structure of the rail so that said setting elements hold the rail spaced apart from the building wall and with the rail axis (S) at least substantially in parallel with the building wall , wherein the setting elements each comprise a foot part , which has the fastening section , and a head part which is formed separately from the foot part and which has the connection section , and wherein the foot part and the head part can be fixed in different positions relative to one another along the setting element axis (A), wherein the foot part and the head part are rotatable relative to one another in the peripheral direction about the setting element axis (A), characterized in that the foot part and the head part are displaceable relative to one another along the setting element axis (A) in a first relative rotational position and are coupled to one another in a second relative rotational position such that they are blocked against a displacement relative to one another along the setting element axis (A). at least one rail , which extends along a rail axis (S) and which has a connection structure at a rear side facing perpendicular to the rail axis (S) and a removal edge and/or a removal surface at a front side opposite said rear side, and at least two setting elements which each extend along a setting element axis (A) from a fastening section to a connection section and which are configured to be fastened, on the one hand, with their respective fastening section , in particular with the setting element axis (A) oriented perpendicular to the building wall , to the building wall and, on the other hand, to be connected with their respective connection section to the connection structure of the rail so that said setting elements hold the rail spaced apart from the building wall and with the rail axis (S) at least substantially in parallel with the building wall , wherein the setting elements each comprise a foot part , which has the fastening section , and a head part which is formed separately from the foot part and which has the connection section , and wherein the foot part and the head part can be fixed in different positions relative to one another along the setting element axis (A), wherein the foot part and the head part are rotatable relative to one another in the peripheral direction about the setting element axis (A), characterized in that the foot part and the head part are displaceable relative to one another along the setting element axis (A) in a first relative rotational position and are coupled to one another in a second relative rotational position such that they are blocked against a displacement relative to one another along the setting element axis (A). <EOS>