Calcium Sulphate
Raised Access Floor System
A gypsum-based raised access floor system for data centers, offices, cleanrooms and other technical spaces, with project-defined fire, anti-static, moisture and finish requirements.
CISCA documentation
CE & MOB Approved
International export coordination
Manufacturing + OEM/ODM support
Structured quote review
Product Overview
What Is a Calcium Sulphate
Raised Access Floor?
A calcium sulphate raised access floor is a modular elevated flooring system where panels are made from a 100% natural gypsum (calcium sulphate) core, encased in galvanised steel. The result is a panel of exceptional dimensional stability, fire resistance, and load-bearing performance.
Panels are supported on adjustable pedestals, creating a service void beneath the floor surface for routing power, data, HVAC, and other building services -- making them the go-to solution for data centres, server rooms, trading floors, government offices, and high-specification commercial interiors worldwide.
Why Calcium Sulphate
Performance for Project
Requirements
Key engineering considerations for calcium sulphate raised access floor projects.
Class A1 Fire Rating
Calcium sulphate core is non-combustible by nature. Achieves Class A1 reaction-to-fire, the highest classification under EN 13501-1 -- no flame spread, no smoke.
Anti-Static Protection
Surface resistance ≤10⁹Ω with conductive or dissipative finishes. Eliminates electrostatic discharge risk in data centres, server rooms and electronics manufacturing.
Superior Load Bearing
Concentrated load capacity from 3kN to 18kN depending on grade. Uniform distributed load tested to CISCA and EN 12825 standards -- handles heavy server racks with ease.
Moisture Resistance
Gypsum core treated for dimensional stability in humid environments. No warping, no swelling -- maintains flatness tolerance ≤0.5mm across the panel surface.
Eco-Friendly & Healthy
Zero formaldehyde, zero VOC emissions. 100% natural mineral gypsum -- recyclable and compliant with green building certification programmes including LEED and BREEAM.
Versatile Finish Options
Available with HPL, PVC, ceramic tile, carpet, conductive vinyl, or bare steel finishes. Custom colours, textures and branding available for OEM/ODM orders.
Technical Data
Full Technical Specifications
Panel Core Specifications
| Core Material | 100% Natural Calcium Sulphate |
| Standard Size | 600*600mm (custom available) |
| Thickness | 26-40mm |
| Core Density | 1400 - 1700 kg/m³ (custom) |
| Steel Sheet | Galvanized steel or Aluminum foil |
| Surface Flatness | ≤ ±0.3mm |
Performance Parameters
| Concentrated Load | 3kN - 18kN (grade-dependent) |
| Ultimate Load | ≥ 2× working load |
| Fire Reaction | Class A1 (EN 13501-1) |
| Anti-Static | ≤ 10⁹ Ω (ESD safe) |
| Certifications | CISCA, CE, MOB, EN 12825 |
| Finish Options | HPL, PVC, Carpet, Ceramic, ESD |
Performance Comparison vs. Wood Core
Excellent (A1)
Up to 18kN
≤ ±0.5mm
Zero VOC / Formaldehyde
Where It Works
Designed for Mission-Critical
Environments
From data centers to government command floors, PROFLOORTECH supports project-based selection of raised access floor panels, finishes and system components.
Highest Demand
Data Centres & Server Rooms
Precision airflow management, anti-static protection, and ultra-high load-bearing capacity for mission-critical IT infrastructure.
≥ 1000 kg/m² load
Ventilated panels
Cable management
High Specification
Government & Command Centres
Stringent fire ratings, acoustic performance, and certified documentation for public-sector project acceptance worldwide.
Fire-rated core
Acoustic damping
MOB documentation
Clean Rooms & Labs
Particle-free surfaces, seamless joints, and chemical-resistant finishes for pharmaceutical and semiconductor environments.
Seamless edge
Financial Trading Floors
High-density cable routing beneath premium HPL surfaces -- built for intensive workstation environments with zero downtime tolerance.
High density
Broadcast & Control Rooms
Vibration damping and RF-shielded configurations for broadcast studios, NOCs, and 24/7 operations centres.
RF shielding
Corporate & Open-Plan Offices
Flexible reconfiguration, premium carpet and PVC finishes, and rapid installation for large commercial fit-outs.
Fast install
Key Performance Benchmarks Across All Environments
≥ 1000 kg/m²
Factory destructive-tested per batch
Class A / B1
100% natural gypsum non-combustible core
10⁶ - 10⁹ Ω
Conductive & static-dissipative options
CISCA · CE · MOB
Full documentation for project acceptance
Specify the right system for your project -- our engineers respond within 24 hours.
Core Service
Customisation
Configured for Your Brand
and Project Specification
Our manufacturing and sourcing workflow supports white-label solutions with coordinated panel, finish, understructure, packaging and export requirements.
FAQ
Frequently Asked Questions
Common questions from global distributors, contractors and architects.
What is a calcium sulfate (calcium sulphate) raised access floor?
What panel size, thickness and load capacity options are available?
Can calcium sulfate raised access floor be used in data centers and cleanrooms?
What finishes and system components are available?
Can PROFLOORTECH provide custom sizes, OEM/ODM and a project quotation?
Have a question not covered here?
Get a Quote
Request a Factory-Direct Quote
Tell us about your project and we'll respond within 24 hours with a detailed quotation, technical datasheet, and container loading plan.
24-hour response
No obligation
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© PROFLOORTECH (Gail) · Changzhou, Jiangsu, China · All products tested to international standards