Videos DBCI: Exceptional Performance You Can Rely OnDBCI provides exceptional performance you can rely on. Take a look at why DBCI is the contractor's choice for reliable steel roll-up doors! Watch the Video DBCI Self-Storage Door TensioningThis is a short demonstration on how to adjust the tension on DBCI self-storage doors. Doors that are hard to open need more tension, while doors that are hard to close need less tension. Watch the Video Sheet Door Astragal ReplacementThe astragal is the rubber strip that runs long the bottom of a door. These are step-by-step instructions on replacing it on your DBCI sheet door. Watch the Video Sheet Door Wind TestDBCI's wind-rated 5000 series door is put through an independent test for certification. Estimated wind speeds exceeded 215 mph. Watch the Video