Pivot doors can be frameless. This is because the pivot hinge hardware is submerged within the door and in the floor and ceiling, without the need for structural elements. This hinge placement allows the weight of the door to be transferred vertically, as opposed to hanging off the side frame https://emilianoikmom.therainblog.com/26230081/5-basit-teknikleri-için-pivot-çelik-kapı