The lower horizontal strip, like the upper horizontal strip, is designed to give the body door rigidity. In addition to connecting the two vertical handles to the body door, a lower support trolley is placed in this profile. Another function of this profile is the decorative function. Thanks to this, the trolleys can be hidden, as well as the edges of chipboards. Therefore, this type of bottom profile has two shelves, of which the long one hides the rollers, and the short one covers the raw edge of the plate. The profile also has a rounded groove for screws. It can be used for 4 mm glass. Thus, the contour of the future body door is closed.