Drop and hook loads

Drop and hook meaning

A regular live load goes like this: you back an empty trailer into a door, the shipper loads it while you wait, you sign, you leave. If the dock is backed up, that wait can eat most of a driving day.

In drop and hook trucking, that wait disappears. The shipper keeps more trailers on site than it has trucks arriving. Its crew loads them when it suits the warehouse, then parks them in the yard with the paperwork ready. When you arrive, you drop the trailer you brought (if any) in an open spot, find the loaded one, hook it and leave.

The same works at delivery. You drop the loaded trailer at the receiver and either leave bobtail or hook an empty to take back or to the next load. The receiver unloads it later.

Two terms you will see with it:

• Drop trailer means a trailer left at a facility to be loaded or unloaded without a truck attached.
• Trailer pool means the set of trailers a shipper, broker or carrier keeps at one or more locations so drop and hook can happen. When a load says "pool trailer" it is coming out of that set.

How drop and hook works

Drop and hook at a shipper yard

A typical preloaded pickup at a shipper yard:

1. Check in at the gate. Give the load or pickup number. Many yards tell you which slot holds your trailer and whether to drop an empty first.
2. Drop your empty if the yard needs one. Some pools require you to bring an empty in exchange; the load will say so. Others let you arrive bobtail.
3. Find and inspect the loaded trailer. Match the trailer number and the seal number to your bill of lading. Walk around it before you couple.
4. Hook and check out. Couple, connect the air lines and light cord, raise the landing gear, tug test, and get the paperwork at the gate.

Done right, the whole stop is short. The time you save is the reason drop and hook exists. For power only carriers it is often the main reason to run power only at all, since many drop and hook loads come out of trailer pools that only need a tractor. J.B. Hunt, for example, describes its power only service as carriers dropping and hooking its trailers at shipper locations, with tour updates sent through its app.

Benefits for power only carriers

• More driving hours per day. Less waiting at docks means more of your hours of service go to paid miles.
• Easier planning. A trailer staged for pickup at a set time makes the next load and the reload easier to line up.
• Less detention fighting. Detention is still possible if the trailer isn't ready, but it happens less often than on live loads.
• Repeat freight. Facilities that run drop and hook tend to ship the same lanes every week, which suits carriers who want consistent work.

There are downsides too. You depend on the trailer being there, loaded and in decent shape. A missing trailer, a trailer still at the door, or a flat tire on a pool trailer can wreck the plan. And you accept responsibility for equipment that isn't yours the moment you hook it.

Pre-hook inspection

Federal rules already require it: under 49 CFR 392.7 a driver may not drive a commercial motor vehicle until satisfied that parts including the service brakes and trailer brake connections, lights and reflectors, tires, wheels and rims, and coupling devices are in good working order. Under 49 CFR 396.13 you must also review the last inspection report before driving. On a trailer you have never seen before, that walk-around protects you twice: from a roadside violation and from a damage claim under the interchange agreement.

A practical pre-hook checklist:

Photograph anything you find and send it to the broker or program before you leave the yard. That five-minute habit is what separates "pre-existing damage" from a bill with your name on it.

How to find drop and hook freight

Drop and hook freight shows up in three places:

• Trailer-pool programs run by large carriers and brokers post preloaded loads in their own apps.
• Public load boards list some of it. Search for power only equipment and read the notes for "drop," "preloaded" or "pool." Our guide to power only load boards covers how each type of board handles it.
• Brokers you are already set up with. Repeat drop and hook lanes often go straight to carriers a broker trusts.

Most power only drop and hook loads use 53-foot trailers pulled by semi tractors. Some trailer moves also suit pickup trucks with gooseneck hitches, which is a separate niche covered in power only with a pickup (hotshot power only). Trailers that move empty or new, rather than loaded, are their own category: see tow away vs load out.

Pricing a drop and hook load

Price it on all-in miles: the empty miles to reach the yard plus the loaded miles. A drop and hook load that pays a little less than a live load can still be the better load if it saves three hours and the trailer pool is closer. Run both options through the power only load profit calculator with your fuel, MPG and wait time to see profit per hour, not just per mile.

If you would rather have someone else work the pools and brokers while you drive, that is what our power only truck dispatch service does, and the freight we book is laid out on the power only loads page.