In the case of the B (or center) pillar on four-door sedans, the pillar is typically a closed steel structure welded at the bottom to the car's rocker panel and floorpan, as well as on the top to the roof rail or panel.
On an average a period lasts between 3 to 5 days. It is normal for a girl to have irregular periods in the beginning. During this time, the duration of her periods may vary from as short as 2 days to as long as 7 days. It can take up to a year for periods to become regular.
How long does your period last? Generally, the bleeding lasts for 3-7 days, although longer than a  week is not uncommon. The entire cycle usually lasts for roughly a  month (28 days), but the cycles can b â¦ e long or short while still  during puberty.n general, periods last anywhere from 3-7 days. If you still have a heavy flow after a week of menstruating, you might want to call your doctor. Anything over 14 days should be discussed with your doctor.