Detention and layover both describe situations where a truck loses productive time, but carriers should not treat the terms as interchangeable.

Detention is commonly tied to waiting at a pickup or delivery beyond an agreed free-time period. Layover is commonly used when a delay becomes a larger scheduling disruption and the truck is held for a much longer period, often into another operating day. The exact trigger and payment come from the agreement for the load.

The practical difference

  • Detention: usually measured as extended waiting at a facility after an agreed free-time threshold.
  • Layover: usually describes a longer disruption that holds the truck beyond the original operating plan, often into another day or service period.
  • Both: should be defined by the rate confirmation, broker-carrier agreement, shipper contract, or tariff rather than assumed from a universal industry clock.

Detention example

A truck arrives for a scheduled pickup, checks in properly, and spends several extra hours waiting to get loaded. If the load still moves that day and the wait crosses the contractual free-time threshold, detention is the accessorial most carriers would look for first.

Layover example

Now suppose the freight is not ready and the facility tells the driver to return the next morning. The truck may be tied up overnight and lose the chance to use that capacity elsewhere. Depending on the load terms, that larger delay may be handled as layover rather than simply continuing an hourly detention clock.

There is no universal conversion point

Rules of thumb online may say detention turns into layover after a certain number of hours. Do not confuse a company policy with a universal standard. The agreement should tell you the free time, detention rate, layover trigger, amount, and notice requirements that apply.

Why the distinction matters

A few hours of detention can erase a reload window. An overnight layover can consume an entire piece of the next day’s capacity. Even when compensation is available, it may not fully replace the opportunity the truck lost.

Track the event in lane history and use the Lane Economics Calculator when you need to compare the attractive loaded rate with the actual time and movement the cycle required.

Document both the clock and the reason

  • Appointment and check-in time
  • Arrival, dock, release, and departure records
  • Who communicated the delay and when
  • Whether the freight still moved the same day
  • Any instruction to return later or remain overnight
  • The applicable detention and layover language in the load terms

For the individual concepts, read what detention means and what layover pay means. For the larger family, use the accessorial charges guide.