Main-frame bar and/or wing-frame bar, and door, window, or façade element

A window, door, or façade element comprising:

• a frame made of frame spars and a sash made of sash spars, each of which comprises
• a main profile having a substantially U-shaped cross section that is a single piece or comprised of multiple pieces, which, viewed in cross-section, has a short leg and a long leg, and a transverse leg formed between the short leg and long leg,
• wherein a free intermediate space, which is overlapped at least in sections by a cover element, a fitting part, or a cover element and a fitting part, is formed between ends of the short leg and the long leg facing away from the transverse leg,
• wherein the short leg of the main profile has a multifunction contour on an inner side of the short leg, the inner side of the short leg facing toward the long leg, wherein the multifunction contour of the short leg entirely or partially delimit at least a short leg fastening groove open in a same direction on a side facing away from the transverse leg for fixing a corresponding fastener of the fitting part or the cover element,
• wherein the long leg of the main profile has a multifunction contour on an inner side of the long leg, the inner side of the long leg facing toward the short leg, wherein the multifunction contour of the long leg entirely or partially delimits a long leg fastening groove open in the direction on the side facing away from the transverse leg for fixing a corresponding fastener of the fitting part or the cover element,
• wherein the frame spars and the sash spars are formed structurally equivalent except for a longitudinal web for covering a planar element on the sash spars.