Depending on the inlay of the entrance mat, the product may be slightly higher than the indicated 12, 17 or 22mm. That’s right, so that the insert protrudes a little from the frame and can develop its effect. In rare cases, it may cause the door to drag a little over the insert. Please try to change the setting of the door minimally to be able to establish a smooth function of door and mat. If the door cannot be adjusted any further, please contact us to assess the overall situation on site and find a solution together.