Reply To: Interior Door Sills. Welcome to TeardropForum.com › Forums › Teardrop Builders’ Forum › Interior Door Sills. › Reply To: Interior Door Sills. December 12, 2016 at 12:56 pm #374 frizParticipant From pictures I have seen. I believe those are for lights. I would like to know which ones fit those holes for reference. This reply was modified 7 years, 10 months ago by friz.