Load Securing: The Basics, The Physics, and The 2026 Legal Standards
Load security is a highly technical discipline that is too often left to guesswork. Relying on the sheer weight of a load to hold it in place is a dangerous misconception. This guide details the exact mathematical forces, friction coefficients, and British Standards the DVSA expects Transport Managers and Drivers to apply before a vehicle enters the public highway.
There is no single "silver bullet" solution that works for every load and vehicle combination. A legally compliant load securing system is a combined method of restraint that typically consists of:
Choosing the system: Drivers and operators must assess the risks and monitor different securing solutions. If you are an operator, you must have documented risk assessments to inform these decisions—a critical compliance expectation we cover extensively in our Transport Manager 2-Day Refresher course.
To be compliant, your load securing system must be mathematically capable of withstanding specific forces generated during normal driving, emergency braking, or swerving. The DVSA enforces the following minimum capability standard for all vehicles and all loads, regardless of size or weight.
Your securing system MUST be able to withstand forces equivalent to:
If your system cannot hold the entire weight of the load from surging forward during an emergency stop, the vehicle is illegally and dangerously loaded.
You cannot rely on the weight of a load alone to keep it in place. Even if a load is incredibly heavy and cannot be moved by hand when the vehicle is stationary, dynamic driving forces will overcome stationary friction.
This is because the friction between most loads and standard trailer load beds is generally very low. If there is a serious load shift, DVSA enforcement agencies will calculate whether you used enough lashings based on the Coefficient of Friction.
This measures how easily two surfaces slide against each other. A lower number means it slides easier (e.g., wet steel on wood). If you do not have certified high-friction matting, the DVSA dictates you must use a default coefficient of 0.2 in all calculations.
A cover (tarpaulin, netting, or sheeting) should only be used to contain a product (like stopping sand blowing away). A cover does not provide sufficient restraint against the percentage forces mentioned above. Covers must only be used in conjunction with dedicated lashings.
While British Standards are not technically road traffic laws in themselves, they are the recognised reference standards. Regulators and Traffic Commissioners will judge your load security system against these codes during an investigation.
| Standard | Title & Application |
|---|---|
| BS EN 12195-1:2010 | Load restraining on road vehicles. Safety - calculation of securing forces. |
| BS EN 12195-2:2001 | Safety - web lashing made from man-made fibres. (Note: Replaces the withdrawn BS 5759:1987). |
| BS EN 12195-3:2001 | Safety - lashing chains. |
| BS EN 12640:2019 | Lashing points for cargo securing. Minimum requirements and testing. |
| BS EN 12642:2016 | Body structure of commercial vehicles. Minimum requirements (e.g., XL rated curtains). |
Transport Manager Duty: Ensuring purchasing policies mandate equipment certified to these BS EN standards is a core competency taught in our Transport Manager Refresher training.
Before loading, drivers must inspect the load platform, bodywork, anchorage points, and twist locks. However, the most commonly overlooked technical risk occurs during the journey.
If part of the load is delivered during a multi-drop journey, removing that weight will reduce the Gross Vehicle Weight, but the sudden change in weight distribution may overload individual axles (e.g., leaving all remaining weight over the drive axle). Drivers must reposition and re-secure the remaining load to maintain an even weight distribution and physical stability.
Equip your drivers and management team with the exact technical standards the DVSA demands. View our live online course dates and secure your compliance today.
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