A base assembly with a pair of doors slidingly attached to the base assembly for moving between an open position and a closed position. An inner core comprising a first end and a throat end with the throat end having a larger diameter than the first end is positioned downward on top of the base assembly with the first end in an upright position. A pallet is positioned around the throat end of the inner core. When the pair of doors are in the closed position, a cavity is formed that is open from the top of the pair of doors and is located between the inner core and the pair of doors and corresponds to the shape of the concrete product with the flared end. The foregoing assembly allows for wet casting concrete products in a vertically upright position.

The disclosure relates to formwork for producing a concrete element, in particular a wall element or ceiling element, having an opening, in particular a window opening or door opening, the formwork comprising: a formwork panel; opening formwork, which has a frame element for delimiting a portion of the opening, a support bracket for supporting the frame element, and a mounting element for mounting the support bracket; a formwork-stripping device for transferring the opening formwork from a formwork position for the formation of the opening into a formwork-stripping position for the release of the concrete element, wherein the formwork-stripping device has a sliding and tilting mechanism for sliding the frame element in a direction parallel to the formwork panel and for tilting the frame element about a pivot axis running substantially parallel to the formwork panel.