300 x 300mm Cover Grille To Suit Fire Block (250x250)
In stock
Delivery Information
| Delivery Time Frame | Delivery Information |
| Next Working Day By 1PM | When an order is placed by 3pm for next working day on certain items |
| Standard Delivery | Usually delivered in 2 to 4 working days |
| Delivery Charges | |
| UK Mainland | Prices start at £3.95 for very small items, £6.50 for small, £9.50 for medium and £20 for large/long items |
| Scottish Highlands & Islands, Northern Ireland & Ireland | Prices from £30, please see our delivery page for more info. |
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Description
300 x 300mm Cover Grille To Suit Fire Block (250x250)
Maintaining proper airflow while ensuring building safety is a critical requirement for any modern interior. Our 300 x 300mm Cover Grille is specifically engineered to provide a professional finish to your ventilation setup. This versatile component serves as the perfect solution for concealing unsightly apertures in walls, doors, or ducting systems.
When you choose this high quality hardware, you are investing in a product that bridges the gap between functional performance and aesthetic cleanliness. It is designed to integrate seamlessly with 250 x 250mm fire blocks, creating a secure environment that does not sacrifice air quality. Whether you are outfitting a busy commercial office or a private residential bathroom, this unit offers the reliability you need.
Mechanical Physics and Structural Integrity
The structural composition of this component relies on 20g mild steel, which provides an exceptional strength to weight ratio. By utilising steel of this gauge, we ensure that the grille resists deformation or warping when subjected to temperature fluctuations or subtle building shifts. The horizontal vane design is not merely for aesthetics, as the physics of the slat angle allows for bidirectional airflow while masking the mechanical guts of the ventilation system behind the wall.
Because the unit is surface mounted, it experiences minimal tension compared to recessed hardware. The load is distributed evenly across the frame, preventing the grille from bowing or experiencing material fatigue over time. The inherent rigidity of mild steel prevents the vanes from vibrating or rattling when air is drawn through the system at high velocity, maintaining a silent and stable operating environment for the end user.
Operational Workflow for Installation
Integrating this ventilation solution into your workspace is a straightforward process that requires minimal specialized tooling. First, ensure your wall or door aperture is prepared and your intumescent fire block is securely positioned within the void according to local safety guidelines. You should clean the surface area surrounding the hole to remove dust or debris, which ensures a flush fit against the substrate.
Once the area is clean, align the grille frame over the opening. The pre drilled screw fixing points simplify the alignment process, allowing you to secure the unit using standard screws compatible with your wall type, such as drywall anchors or wood screws for door applications. Apply even pressure when tightening the fasteners, but avoid over tightening to ensure the frame remains perfectly level. The final result is a clean, professional finish that allows for consistent air filtration and circulation while keeping the internal fire safety components protected from impact or accidental damage.
Ergonomic Health, Safety, and Compliance
Safety is the cornerstone of our hardware design philosophy. By choosing this model to cover your fire block, you are actively participating in the passive fire protection of your building. A fire block is a vital safety component, and concealing it behind a properly rated grille ensures that it remains undisturbed during daily operations while still allowing it to function effectively in the event of thermal expansion.
Furthermore, the ergonomic benefits extend to the building occupants. Proper ventilation is essential for indoor air quality, which directly correlates to human health and productivity. By preventing stagnant air pockets in damp areas like bathrooms or kitchens, this grille helps mitigate the risk of mould and mildew growth. This provides a healthier breathing environment and reduces the maintenance burden on facilities management teams, who no longer need to address air quality complaints caused by blocked or poorly covered vents.
Commercial ROI and Long Term Value
Investing in durable, high quality hardware is a strategic decision for any facility manager or property developer. The use of robust mild steel ensures that your ventilation covers do not require frequent replacement, unlike cheaper plastic alternatives that can become brittle and discoloured over time. By reducing the frequency of maintenance cycles, you effectively lower the total cost of ownership for your building ventilation infrastructure.
This item acts as a protective shield for your more expensive air filtration and climate control systems. By ensuring that airflow is directed through appropriate channels rather than obstructed by internal debris or poorly designed covers, the overall efficiency of your climate control system is maintained. This leads to lower energy consumption and less strain on mechanical fans, providing significant cost savings over the lifespan of the building.
Suitable Applications and Environments
This 300 x 300mm Cover Grille is incredibly versatile. It is ideal for a wide variety of indoor and outdoor settings. You can reliably install these units in professional offices to maintain air circulation, in kitchens where moisture control is essential, and in bathroom facilities where dampness must be managed to prevent structural damage. They are also perfectly suited for use at the end of ducting systems or mounted directly onto fire rated doors.
Not sure if this ventilator is right for your specific requirements? Please contact our friendly team at Doorfit today to discuss your project needs and ensure you select the perfect hardware for your installation.
Technical Specifications
We believe in transparency regarding the technical parameters of our equipment. The following table outlines the precise measurements and construction details for this specific model.
| Feature | Specification |
|---|---|
| Primary Material | 20g Mild Steel |
| Finish | Silver Metallic |
| External Height | 300mm |
| External Width | 300mm |
| Compatibility | 250 x 250mm Fire Block |
| Installation Method | Surface Mounted / Screw Fixed |
| Vane Orientation | Horizontal Fixed Bidirectional |
| Environment | Interior and Exterior |
When you integrate this item into your building project, you are choosing a component that has been refined through years of experience in the architectural hardware industry. The 300 x 300mm Cover Grille To Suit Fire Block (250x250) represents a balanced approach to air management, security, and visual presentation. Do not leave your wall or door apertures exposed to the elements or accidental damage. Secure your space with the reliable, professional grade ventilation hardware available today from the Doorfit collection.
If you require bulk orders or specific technical documentation for an upcoming commercial tender, our team is ready to assist you. We understand that every project has unique challenges, and we are committed to helping you find the most efficient and compliant solutions for your infrastructure requirements. Reach out to our experts and experience the difference that high quality, well engineered metalwork can make for your property.
Specification
| Manufacturer | AstroFlame |
|---|---|
| Finish | Silver |


