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Glossary

Live load vs drop trailer: what's the difference?

On a live load, the driver stays with the truck while the trailer is loaded or unloaded — typically 30 to 90 minutes. On a drop-and-hook (drop trailer), the driver drops a pre-loaded trailer and picks up another, taking 15 minutes or less. The choice affects dwell time, dock-door utilization, detention exposure, and how you should configure dock-scheduling appointment types.

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Live load vs drop trailer at a glance

Driver time at the dock: a live load keeps the driver for the whole load or unload, typically 30 to 90 minutes; a drop trailer takes 15 minutes or less. Equipment: a live load needs one trailer per load; a drop program needs a pool of extra trailers and yard space to park them. Detention risk: higher on live loads, because the carrier's clock runs while you work; low on drops. Scheduling: a live load books a door for the full duration; a drop books a short yard or door slot, and the loading happens on your own time.

Live loads

Live loads are simpler logistically — one driver, one truck, in and out. They work well when volume is moderate and the warehouse can guarantee a fast turn. The downside is detention exposure: if the dock can't load fast enough, the carrier bills detention.

Drop trailers

Drop trailers decouple driver time from loading time. Carriers leave a pre-loaded trailer at a yard slot and pick up a different empty (or pre-loaded outbound). This shrinks driver dwell to almost nothing but requires trailer-pool capacity, more yard space, and tight inventory tracking.

Scheduling implications

Configure live-load appointment types with the actual loading duration and minimum notice. For drop trailers, configure short check-in slots (10–15 minutes) and use custom fields to capture trailer numbers in and out. SimpleDock supports both with separate appointment types per facility.

See it in practice

What good dock scheduling actually looks like.

The SimpleDock booking flow your carriers would use — link-based, no account, under a minute.

simpledock.ai/book/acme-warehouse

Frequently asked questions

Which is cheaper, live load or drop trailer?
Per-load, live is usually cheaper because you're not paying for trailer-pool capacity. Across a full operation, drop trailers can lower total cost by reducing detention and improving driver utilization.
Can the same dock handle both?
Yes. Most warehouses run both flows on shared doors. SimpleDock supports separate appointment types per direction and per type, so live and drop don't collide.
What is a live unload?
A live unload is the inbound version of a live load: the driver backs into a door and waits while the warehouse unloads the trailer, then leaves with the empty. The appointment has to cover the full unloading time.
What does drop and hook mean?
Drop and hook means the driver drops a trailer at the facility and hooks up a different one, usually an empty or a preloaded outbound, in the same visit. It's the most common form of drop-trailer program.
What's a 'preloaded outbound'?
A trailer the warehouse loads in advance so a driver can hook and leave without waiting at the dock door — essentially the outbound side of a drop-trailer program.

Related terms and resources

Dock appointmentA dock appointment is a confirmed time window during which a specific truck is allowed to use a specific dock door at a warehouse …Read more →Detention and demurrageDetention is a per-hour charge a carrier bills the shipper or receiver when a truck is delayed at a dock beyond a free time window…Read more →Dwell timeDwell time is the elapsed time a truck spends at a warehouse or terminal from gate-in to gate-out. High dwell time compounds into …Read more →Dock scheduling for retail distributionRetail dock scheduling is where vendor compliance, store replenishment, and yard congestion meet. Retail distribution centers move…Read more →Opendock alternativeOpendock, owned by Loadsmart, has grown from dock scheduling into a dock, gate, and yard suite for large warehouse networks — it r…Read more →Best dock scheduling software (2026)The best dock scheduling software depends on whether you need dock appointments alone or a full yard suite. For a single facility …Read more →

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