Open Box Beam vs Armco Beam: Choosing the Right Safety Barrier for Your Site

When vehicles, forklifts and pedestrians operate in the same environment, physical segregation is one of the most effective ways to reduce risk.

For site managers, warehouse operators and facilities teams, two of the most common steel barrier systems are Open Box Beam (OBB) and Armco crash barrier.

Both provide robust vehicle protection, but they are designed differently and suit different applications. Choosing between them should come down to the layout of the site, the type of vehicle movement involved and what you actually need to protect.

What Is an Open Box Beam Barrier?

Open Box Beam, commonly shortened to OBB, is a galvanised steel barrier formed into an open rectangular profile.

The beam is mounted horizontally between steel posts to create a strong, continuous physical barrier. Its relatively compact profile makes it particularly suitable for industrial environments where space is limited.

Typical applications include:

• Warehouses and distribution centres

• Forklift and pedestrian segregation

• Loading bays

• Internal traffic routes

• Machinery and equipment protection

• Building perimeter protection

• Car parks

• Service yards

Because the beam has a cleaner, narrower profile than traditional Armco, OBB is particularly effective where a substantial steel barrier is required without taking up unnecessary floor space.

Open Box Beam vs Armco

There isn't a universal "better" option. The correct system depends on the environment.

The important distinction is usually application rather than preference.

For example, an OBB system can work extremely well alongside a warehouse pedestrian route where forklifts operate nearby. Armco may be more appropriate around an external loading yard where larger commercial vehicles regularly manoeuvre.

Some sites will benefit from using both systems in different areas.

Why OBB Works Particularly Well in Warehouses

Warehouse layouts often require a barrier that provides physical protection without consuming too much usable space.

An Open Box Beam system can be used to establish a clear boundary between moving vehicles and areas occupied by employees.

This can include protecting:

Pedestrian walkways
Creating physical segregation between warehouse traffic and designated walking routes.

Racking and storage areas
Helping prevent accidental vehicle contact with vulnerable infrastructure.

Machinery
Protecting production equipment, electrical installations and other valuable assets.

Doorways and entrances
Creating controlled pedestrian routes close to areas of vehicle movement.

Loading areas
Providing defined boundaries around loading bays and vehicle manoeuvring zones.

Safety Compliance and Workplace Traffic Management

Vehicle movements are a significant consideration in workplace risk assessments.

The Health and Safety Executive states that workplaces should be planned so that pedestrians are safe from vehicles, with separate pedestrian and vehicle routes provided wherever possible. Where necessary, HSE specifically recommends suitable protective barriers or guard rails. (HSE)

Under the Workplace (Health, Safety and Welfare) Regulations 1992, workplace traffic routes must also be organised so they can be used safely. (HSE)

For a site manager, that means simply painting a pedestrian walkway onto a warehouse floor may not always represent an adequate control measure.

Where a risk assessment identifies a meaningful possibility of vehicle-to-pedestrian contact, physical segregation using an appropriate barrier system may form part of the site's wider traffic-management strategy.

Where Should Open Box Beam Be Installed?

A useful starting point is to map the movement of both vehicles and pedestrians around the site.

Pay particular attention to:

• Forklift routes

• Blind corners

• Pedestrian walkways

• Warehouse entrances and exits

• Loading bays

• Areas where vehicles reverse

• Racking ends

• Machinery positioned close to traffic

• Electrical equipment

• Building columns

• Routes used by visiting drivers

HSE guidance recommends examining how people and vehicles move around a workplace and identifying areas where their routes interact. (HSE)

These interaction points are often where additional protection is most valuable.

When Should You Choose Armco Instead?

Armco remains an excellent solution where a more substantial traditional crash-barrier system is appropriate.

It is commonly specified for:

• External service yards

• Industrial estate roads

• HGV manoeuvring areas

• Car parks

• Building perimeters

• Loading areas

• Long vehicle routes

Armco also offers a wide range of posts, corners and safety ends, making it possible to construct extensive barrier runs around complex layouts.

For many industrial sites, the decision therefore isn't OBB or Armco across the entire site.

It is a question of specifying the correct system for each risk area.

Galvanised Steel for Industrial Environments

Open Box Beam systems manufactured from galvanised steel provide a durable finish suitable for demanding industrial environments.

Galvanising provides corrosion protection while requiring relatively little ongoing maintenance, making the system suitable for both internal and external applications.

Individual sections can also be combined to create longer continuous barrier runs depending on the layout being protected.

Building the Right Barrier System

A good vehicle-protection system should start with the risk rather than the product.

Consider:

1. What needs protecting?
   People, machinery, racking, buildings or a combination of these.

2. What vehicles operate nearby?
   A warehouse forklift presents a different risk profile from an articulated HGV.

3. How much space is available?
   Compact warehouse layouts can make OBB particularly attractive.

4. Where are the interaction points?
   Focus on areas where vehicles, pedestrians and infrastructure come closest together.

5. Does one system suit the whole site?
   Often it won't. OBB, Armco, bollards and pedestrian barriers can all form part of the same traffic-management strategy.

Open Box Beam and Armco from Barrier Base

Barrier Base supplies Open Box Beam, Armco barrier systems and associated components for warehouses, factories, commercial properties and industrial sites across the UK.

Whether you're protecting a single piece of machinery, separating a pedestrian route or specifying barriers across an entire industrial site, we can help you select the appropriate components for the installation.

Need a non-standard configuration? Our team can also assist with custom orders and site-specific barrier requirements.

Explore our Open Box Beam range or contact Barrier Base for help specifying your barrier system.