The four zones, in priority order
- Yard and trailer pool — seal checks, trailer counts, unauthorized tractors, fuel theft
- Dock face — dock doors secured, levelers down, no propped man-doors, no staged product left outside
- Perimeter and roof access — fence line, gates, ladders, HVAC units, copper and condenser theft points
- Interior staging — high-value SKUs, electronics, tools, and anything palletized near an exit
What every pass should document
- Trailer numbers and seal status with photos, so a discrepancy is caught on the shift it happened
- Dock door and man-door status by number, not a general 'all secure'
- Gate condition and any vehicle in the yard that does not belong
- Lighting outages, fence damage, and roof access points — the precursors to loss
- Timestamped photo per checkpoint, delivered by email each morning
Driver check-in is where most yards leak
The most common warehouse vulnerability we find in the Sacramento distribution corridor is not a broken fence — it is uncontrolled driver access. A yard where any tractor can pull in, hook a trailer, and leave without a logged check-in has no meaningful perimeter regardless of how good the fence is.
A staffed gate post with a written in-and-out log, verifying carrier, driver, trailer, and seal, is usually the highest-return single change a distribution site can make.
Reporting that survives a claim
When product goes missing, your carrier will ask when it was last verified present. A patrol log with a timestamped trailer-seal photo answers that question in minutes. A summary that says 'yard secure' does not. This is the difference between coverage that reduces loss and coverage that only reduces anxiety.