Height Restriction Clatter Bar
Verified by manufacturer 17 days ago
Suspended height restriction clatter bar providing visual and audible warning to forklift operators. Restricts mast height and protects doorways, mezzanines and overhead structures.
Application
The Height Restriction Clatter Bar is designed to provide a clear visual and audible warning when forklift masts or elevated loads approach a restricted overhead height. Installed across door openings, mezzanine perimeters and internal vehicle routes, it helps prevent impact with structural elements and overhead services.
By creating an early warning zone, the suspended bar alerts operators before contact is made with lintels, door frames, mezzanine edges, lighting systems or sprinkler pipework. The system supports forklift height awareness and reduces accidental damage within warehouse and industrial environments.
Warehouse Safety
In warehouse operations, forklift mast overextension can result in costly structural damage. The clatter bar is typically installed:
- At warehouse doorways
- Beneath mezzanine floors
- Along mezzanine perimeters
- Across internal forklift traffic routes
- At loading bay access points
When struck, the suspended HDPE bar produces an audible clatter and visible movement, prompting the operator to lower the mast before proceeding.
Industrial and Manufacturing Facilities
In manufacturing plants and industrial facilities with limited overhead clearance, the clatter bar provides practical height control near sensitive infrastructure.
Typical uses include:
- Protection of structural beams
- Safeguarding overhead services
- Protection of lighting and containment systems
- Height control near production areas
- Delineation of restricted clearance zones
Logistics and Distribution Centres
In logistics centres and distribution hubs with high forklift traffic, the system provides consistent height warning across operational areas.
Common installation points include:
- Loading bay entrances
- Cross docking corridors
- Access beneath mezzanine offices
- Entry to automated storage areas
Overhead Clearance Management
The Height Restriction Clatter Bar functions as a warning device rather than a physical restraint barrier. It is suited to environments where height awareness is required but structural vehicle stopping systems are not necessary.
Suitable environments include:
- Warehouses
- Distribution centres
- Manufacturing facilities
- Commercial storage units
By combining suspended overhead installation, durable HDPE construction and audible impact feedback, the Height Restriction Clatter Bar provides a cost-effective solution for overhead clearance management and forklift mast height control.
Description
Height Warning Clatter Bar Overview:
Safeguard forklift operations, restrict mast heights, and protect doorways and mezzanines.
Features and Benefits:
- Visual and audible warning for forklift mast heights exceeding operating limits.
- Modular design lines mezzanine perimeter, alerting operators to safety risks.
- Simple, cost-effective installation with 120 mm diameter rubber end caps suspended by steel chains.
- Optional "Maximum Height Restriction _ _ _ _ Metres" signage.
- UK-manufactured from medium-density polyethylene, standard length 2400 mm.
- Highly visible vibrant yellow with black end caps.
- Clatter bars available in red or yellow powder coating.
- Sizes: 120 x 2200 mm, 80 x 3500 mm, 76 x 3500 mm.
Product Description
The Height Restriction Clatter Bar is a suspended overhead height warning system designed to provide both visual and audible alerts when forklift masts or elevated loads exceed a designated safe operating height.
Installed across warehouse door openings, mezzanine perimeters and internal forklift routes, the clatter bar provides an early warning before contact is made with structural lintels, mezzanine edges, lighting systems or overhead services. It is intended to alert operators rather than physically restrain vehicles.
Material and Construction
The clatter bar is manufactured in the UK from high density polyethylene, HDPE. This high strength thermoplastic polymer provides durability, impact resistance and long-term performance within active warehouse and industrial environments.
HDPE offers:
- High impact resistance under repeated contact
- Resistance to cracking and splintering
- Non-corrosive performance
- Suitable for indoor industrial environments
- Consistent colour throughout material
The polymer construction allows the bar to withstand repeated low-energy contact from forklift masts while minimising damage to both the vehicle and the warning system.
Operational Function
When a forklift mast or elevated load exceeds the defined height restriction, contact with the suspended bar produces a clear audible clatter and visible movement. This immediate feedback prompts the operator to lower the mast before proceeding.
The system supports:
- Forklift mast height awareness
- Protection of door frames and structural openings
- Protection of mezzanine perimeters
- Protection of overhead services and utilities
It functions as a warning device rather than a load-bearing or vehicle restraint barrier.
Suspension and Installation
The Height Restriction Clatter Bar is suspended using steel chains, allowing the unit to move freely upon contact and amplify the audible warning effect.
Installation features include:
- Overhead suspended configuration
- Steel chain suspension
- 120 mm diameter rubber end caps
- Modular layout suitable for lining mezzanine perimeters
- Simple and cost-effective installation
The suspended design reduces stress transfer to the supporting structure and allows consistent performance across high traffic forklift routes.
Visibility and Identification
The bar is supplied in a high visibility yellow finish with black rubber end caps to enhance operator awareness.
Optional “Maximum Height Restriction ____ Metres” signage can be specified to clearly communicate permitted mast height within the controlled zone.
Powder coated variants are available in red or yellow where alternative site colour coding is required.
Available Sizes
Standard length:
- 2400 mm
Additional size options:
- 120 mm diameter x 2200 mm length
- 80 mm diameter x 3500 mm length
- 76 mm diameter x 3500 mm length
Bespoke sizes available on request.
These dimensional variations allow specification according to doorway width, mezzanine span and internal clearance requirements.
Typical Applications
Commonly installed in:
- Warehouse door openings
- Mezzanine floor perimeters
- Internal forklift traffic routes
- Loading bay entrances
- Distribution centres
- Manufacturing facilities
By providing both visual and audible height restriction warning, the Height Restriction Clatter Bar helps reduce accidental mast collisions, protect building fabric and maintain safer forklift operations in industrial environments.
General information
Color | Yellow |
Finish | Other |
Material | High density polyethylene (HDPE) |
Shape | Other |
Length | 1250 mm |
Width | 123.5 mm |
Height | 123.5 mm |
Uniclass | |
CAWS | Q41/230 Height restrictors |
Specification data - Height restrictors
Classification data | |
Clearance dimensions | |
Height | 2200 mm. 3500 mm. |
Span | ≥1250 mm. |
Material | |
Overhead beams | Polyethylene. |
Finish as delivered | |
Worked finish | Yellow. |
Colour | Yellow. Red and yellow. |
Accessories | Custom height warning message text. |
Material: | Polyethylene. |
Sustainability data
Contains Red List materials | No |
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Material | High density polyethylene (HDPE) |
Recyclability | 100% |
BIM objects
This BIM object has been authored to meet the requirements of the
Find out more about the
| Platform | Compatible | Version |
|---|---|---|
 IFC | - | 1 |
 Revit | - | 1 |
Literature
Height Restriction Clatter Bar - Brandsafe Spec Sheet
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