The amount of apron space required for
maneuvering equipment into the dock depends
on the length of the tractor trailer or truck unit, its
turning radius, and the width of the stall. Table 3–3
lists typical space requirements for several tractor
trailer sizes. Where a truck must back into a stall
within a shipping building, doors large enough for
easy maneuvering are needed. A door 8–9 ft. wide
by 10 ft. high is needed for an open dock. Provisions
must also be made to vent the engine exhaust fumes.
Weather seals around the door will minimize heat
loss from the building. For night operations, good
lighting should be provided.