Refrigerated sales cabinet, comprising: a cabinet body providing a refrigerated sales space for supporting refrigerated goods to be sold therein; a door frame having a top post, a bottom post, and at least two upright posts; at least one door; wherein each of said at least two upright posts has a cold main body and an insulating front element, wherein said cold main body has a basically C-shaped cross section comprising a rear portion and two side portions, which are arranged basically parallel to each other and perpendicular to the rear portion, and said insulating front element comprising, from back to front, a rear panel, which is attached to the cold main body, and a front panel forming the front surface of the post (32, 34, 36), wherein each of said at least two upright posts comprises an internal support member arranged within the cold main body, extending basically parallel to the rear portion and providing an elongated first hollow space within the cold main body, the first hollow space being defined by the internal support member, the rear portion and the two side portions, wherein a front side of the internal support member facing the at least one door is provided with two first bracket members, and wherein the insulating front element is mounted to a front side of the internal support member facing the at least one door by means of two second bracket members provided at the rear side of the rear panel and engaging with the first bracket members provided at the internal support member; and wherein at least a front surface of the front panel is covered with a thermally insulating coating employing nano-technology for providing thermal insulation against the cold main body of the post a cabinet body providing a refrigerated sales space for supporting refrigerated goods to be sold therein; a door frame having a top post, a bottom post, and at least two upright posts; at least one door; wherein each of said at least two upright posts has a cold main body and an insulating front element, wherein said cold main body has a basically C-shaped cross section comprising a rear portion and two side portions, which are arranged basically parallel to each other and perpendicular to the rear portion, and said insulating front element comprising, from back to front, a rear panel, which is attached to the cold main body, and a front panel forming the front surface of the post (32, 34, 36), wherein each of said at least two upright posts comprises an internal support member arranged within the cold main body, extending basically parallel to the rear portion and providing an elongated first hollow space within the cold main body, the first hollow space being defined by the internal support member, the rear portion and the two side portions, wherein a front side of the internal support member facing the at least one door is provided with two first bracket members, and wherein the insulating front element is mounted to a front side of the internal support member facing the at least one door by means of two second bracket members provided at the rear side of the rear panel and engaging with the first bracket members provided at the internal support member; and wherein at least a front surface of the front panel is covered with a thermally insulating coating employing nano-technology for providing thermal insulation against the cold main body of the post