The configuration of the area required to maneuver and position trailers into place is called the apron space. Planning apron space requires recognizing trailer movement and the amount of room it takes to achieve that movement. Traffic flow and vehicle length are key factors for consideration (ie. a truck with an overall length of 65' requires a minimum apron space of 135’).

If the area is to be surfaced with asphalt, a concrete landing strip must be poured. In warm temperatures, the landing strip will prevent the trailer's landing gear from sinking into the asphalt when spotted. Size the landing strip for the longest trailer that will visit the dock less 7 feet. Gravel-covered apron space should be avoided because it creates uneven, unsafe conditions.