Trucking Glossary

An assembly of straps, chains and associated connectors used to restrain cargo on a vehicle. Its application depends on the load and connections.

The maximum working load of a securement component under specified conditions, not its breaking strength. The system also depends on connections and use.

A webbing tiedown tensioned with a ratchet mechanism. Its capacity depends on the assembly and conditions of use.

A device that tensions and holds a securement chain, also called a load binder, with different mechanisms and ratings.

A location where a tiedown attaches to the vehicle or cargo. Its structure and condition affect securement.

Protection at an edge where a tiedown contacts cargo, reducing abrasion or cutting. It does not replace adequate restraint capacity.

A front-end structure on a vehicle or loading platform. It may restrain forward cargo movement where the design and arrangement support that use.

Restraint using suitable structures or material to prevent load movement in a direction, usually as part of a complete securement arrangement.

Using supports to stabilize cargo or resist movement. The supports and their connections must suit the forces involved.

Materials used to support, separate or protect freight, such as suitable timber or fillers. Not all dunnage performs the same restraint function.

The use of vehicle structures, dunnage, blocking, bracing, tiedowns, chains, or other suitable means to contain, immobilize, or restrain cargo so it does not leak, fall, or shift enough to affect vehicle stability or handling. A container seal indicates closure or identity; it does not secure the cargo.