Pressed gratings designed to integrate ventilation, load capacity and modularity into technical flooring systems.
OMAF manufactures pressed gratings for raised access floors in Data Centers, developed to support airflow and integrate with the modular panels used in digital infrastructure environments.
The most requested configuration is based on 600 × 600 mm panels, compatible with the standard modularity of raised access flooring systems. Dimensions, mesh, material, finish and load-bearing capacity can be adapted to the manufacturer’s specifications and to the actual operating conditions of the project.
Gratings for Air Management in Raised Access Floors
In Data Centers, raised access floors are not just walking surfaces. They can become part of the system used to distribute air, organize technical installations and provide access to equipment.
The open structure of pressed grating allows air from the underfloor plenum to pass through the panel. The airflow can then be directed towards the areas where thermal load is concentrated, such as rack rows, cold aisles and electrical equipment.
Actual cooling efficiency depends on the overall system design, the percentage of open area and the distribution of the panels. For this reason, OMAF gratings are defined by considering both ventilation requirements and the structural needs of each project.
Why Choose Pressed Gratings for a Data Center
High Air Permeability
The open mesh creates a surface with a high percentage of free passage, suitable for areas where the raised access floor is used to distribute cooling air.
The geometry can be selected according to the required balance between open area, mechanical resistance and intended use.
Support for Cooling Distribution
The grating allows air to move from the plenum to the operating areas, contributing to a more controlled distribution of airflow near racks and technical equipment.
The configuration must be coordinated with the Data Center’s thermal design. The grating should not be considered as an isolated component, but as part of the overall cooling and flooring system.
Configurable Load-Bearing Capacity
Load capacity is defined by considering distributed loads, concentrated loads, grating dimensions, supports, height and thickness of the bearing bars and mesh geometry.
A single standard sizing is not applied to every project. OMAF’s technical department can assess the most suitable configuration according to the loads declared by the client. The technical choice of a grating depends on the combination of mesh, bearing bars, clear span and load conditions.
Integration with Raised Access Floors
The modular format allows the panel to be integrated into the technical flooring structure while maintaining access to the underfloor space.
Perimeter frame, overall height, tolerances and support points can be checked together with the raised access floor manufacturer.
Typical Panel Configuration for Data Centers
One of the most requested configurations for integration into raised access floors includes the following features:
Nominal size
600 × 600 mm
Perimeter frame
Indicative height: 40 mm
Most commonly used mesh sizes
15 × 66 mm or 33 × 11 mm
Material
Carbon steel
Surface treatment
Electrolytic galvanizing followed by painting
Applications in Data Centers
Server Rooms
Gratings can be installed in areas where air needs to be distributed towards racks and equipment, while maintaining a walkable and inspectable surface.
Service Aisles
In technical walkways, pressed gratings combine access to the plenum, flooring continuity and airflow passage.
UPS and Electrical Rooms
In areas dedicated to uninterruptible power supplies and electrical equipment, the grating can be sized according to expected loads and equipment ventilation requirements.
The open structure supports integration with technical floors used to house cables, systems and electrical infrastructure.
Control Rooms
The modular format makes it possible to install grating panels only where required, coordinating them with the other elements of the raised access floor.
Co-Design of Pressed Gratings
Materials and Finishes
The most frequently requested solution is made of carbon steel with electrolytic galvanizing and painting.
This combination of treatments protects the surface and allows the panel to be coordinated with the colour and finish of the raised flooring system.
When different requirements apply, the technical department can assess alternative materials or treatments according to:
- installation environment;
- corrosion risk;
- aesthetic requirements;
- frequency of panel handling;
- characteristics of the raised access floor system;
- project specifications.
FAQ – Frequently Asked Questions
What is the most common format for Data Center raised access floors?
The most requested format is 600 × 600 mm, because it integrates with the modularity of many technical flooring systems. OMAF can also manufacture different sizes, subject to verification of the support structure.
Which mesh sizes are used?
Common configurations include 15 × 66 mm and 33 × 11 mm mesh sizes. The choice depends on the required airflow, design loads and characteristics of the raised floor.
Can the grating be sized according to load capacity?
Yes. The configuration is defined by considering support span, concentrated and distributed loads, load footprint, height and thickness of the bearing bars and mesh geometry. For this reason, it is not technically correct to assign a generic load capacity to all panels.
Which material is normally used?
The most requested solution is carbon steel with electrolytic galvanizing and painting. Different materials and finishes can be evaluated according to installation conditions and client specifications.
Can the panel be customized?
Yes. OMAF can co-design gratings with dimensions, frames, mesh sizes, load capacities, materials and finishes that differ from the typical configuration.
Where can pressed gratings be installed?
Pressed gratings can be used in server rooms, service aisles, UPS rooms, electrical rooms, control rooms and other technical areas equipped with raised access flooring.