There may be various reasons to suspend a strip door bracket, especially if obstructions above the intended area make it challenging to install the door, or if the building structure is sloped. If you plan to hang the strip door more than 5.5 feet or in a high-traffic area with vehicle passage, we recommend using slotted angles or Unistrut to suspend the brackets. To prevent hardware movement during traffic, we recommend bracing the suspension in all four directions.