Glossary

Trailer Parking Ratio (Trailer Storage Ratio)

Also known as: trailer storage ratio, trailer stall ratio

The number of trailer parking or storage stalls provided relative to building size or to the number of dock doors, reflecting how heavily a tenant's operation relies on staging loaded or empty trailers on site.

Trailer parking demand is driven by a tenant's operating model: a "live load" operation, where a trailer is loaded or unloaded while the driver waits, needs relatively few trailer stalls beyond the doors themselves, while a "drop-and-hook" operation -- standard for large retailers, parcel carriers, and many 3PLs -- pre-stages loaded trailers to be hooked and pulled on a schedule, requiring a trailer-to-door ratio of 2:1, 3:1, or higher. This distinction has become a major driver of land-intensive site requirements in recent underwriting cycles, since a building with an excellent dock ratio but insufficient trailer storage land cannot serve the drop-and-hook tenants willing to pay the highest rents, pushing those users toward sites with larger truck courts or supplemental trailer storage parcels.