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M1 / SM1 Steel Pedestrian Guardrail – Roadside Safety Barrier with Inline or Staggered Infill

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Alpha Rail Ltd

Steel Pedestrian Guardrail System – M1 (Inline) / SM1 (Staggered)

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Application

Suitable for:

  • Urban and rural highways requiring pedestrian control
  • Perimeters near schools, colleges, and educational campuses
  • Public and private car parks
  • Industrial estates and logistics facilities
  • Roadside walkways and controlled crossing zones
  • Traffic management schemes and regeneration project

Description

The M1 / SM1 Pedestrian Guardrail is a widely adopted, cost-effective solution for managing pedestrian movement in busy public environments. Designed to guide foot traffic safely to crossings and restrict unsafe road access, it is commonly installed along Britain’s highways, near schools, car parks, and industrial zones.

Constructed from robust steel with full-height infills, M1 models feature inline bars for maximum visibility, while SM1 units incorporate staggered infills to reduce distractions for drivers. Each panel is fabricated as a self-contained unit—no separate posts required—and can be tailored to suit gradients or curves. Offered in galvanised finish as standard, with optional black or green powder coating. Conforms to BS 7818 requirements for pedestrian restraint systems.

Features & Benefits

Widely used design – Standard guardrail format for safe pedestrian flow along roadsides and crossings

Two infill configurations – M1 with inline bars for visibility; SM1 with staggered bars for driver safety

Single-unit panel construction – Simplifies installation; no separate posts required

Adaptable fabrication – Can be produced to follow roadside curves and gradients for seamless alignment

Steel construction – Ensures structural strength in urban and roadside environments

Weather-protective finish – Supplied hot dip galvanised as standard; powder-coated options in black or green

Fixings included – Each unit comes complete with all required fixings for rapid installation

BS 7818 compliant – Manufactured to meet UK standards for pedestrian safety barriers

General information

Color

Silver

Grey

Black

Green

Other

Finish

Galvanized

Powder-coated

Material

Steel

Shape

Rectangle

Length

Bespoke

Width

2000 mm

1000 mm

Height

1050 mm

Uniclass

Ss_25_15_60_57 Metal vertical bar pedestrian guard rail systemsPrimary

CAWS

Q40/340 Steel vertical bar fencing

Q40/30 Proprietary fencing

Q40/430 Proprietary fencing

Specification data - Metal vertical bar pedestrian guard rail systems

Classification data

Standard

To BS 7818.

Preparatory work

To system manufacturer’s recommendations.

Posts

Guidance for specification option:

  • Hot dip galvanized steel to BS EN ISO 1461 legs integral within the panel.
  • No separate posts required.

Post foundations

Guidance for specification option:

Insert requirements.

  • Full length posts to be concreted in (rooted) as standard.
  • Base plated posts optional.
  • Consult manufacturer for details.

Panels

Steel full height panels with inline infills (M1), 50 x 30 mm RHS horizontal rails and 50 x 30 mm RHS vertical legs.
Steel full height panels with staggered infills (SM1), 50 x 30 mm RHS horizontal rails and 50 x 30 mm RHS vertical legs.

Site applied finishes

Guidance for specification option:

Consult manufacturer for details and insert requirements or omit.

System accessories

Not required.
Gates available to suit.

Guidance for specification option:

Consult manufacturer and insert requirements.

Finish/ Colour

Hot dipped galvanized to BS EN ISO 1461.
Polyester powder-coated, black (RAL 9005).
Polyester powder-coated, green (RAL 6005).
Polyester powder-coated, RAL colour.

Guidance for specification option:

Available on request; consult manufacturer and insert requirements.

Post centres

1000 mm.
2000 mm.

Height

1050 mm above ground.

Infills

∅12 mm solid bar.

Fixings

M10 x 75 bolts, HEX nuts and washers.

Sustainability data

Country of product manufacture

United Kingdom

Material

Steel

Literature

M1/SM1 Data Sheet

M1/SM1 Data Sheet

Case studies

Airbus Factory, Broughton

Airbus Factory, Broughton

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