Server room in Aktau — technical building with a DIVIO class 6 raised access floor to EN 12825

Projects — Data centers & server rooms

Server room, Aktau

Role: Supply + installation
Load class: 6 — EN 12825
Year: 2026

Object

A standalone building in the Aktau industrial zone. Three zones, load-bearing columns across the floor plate, an elongated geometry — a complex outline, so cutting is unavoidable around the whole perimeter.

Western Kazakhstan, the dry hot climate of Mangystau. The floor has to be dimensionally stable and indifferent to humidity swings — which ruled out a chipboard core from the start.

The Aktau server hall — a raised access floor laid to a single finished floor datum of 565 mm across all three zones

Load

A server rack presses at four points, not across an area. The floor under a rack has to carry that concentrated pressure with no settlement at the pedestal and no panel deflection — and still stay demountable: access to the routes and the airflow is needed at any point in the hall.

The PG3AL calcium sulphate panel paired with the reinforced TR structure reaches class 6 to EN 12825 — the top step of the standard.

The figures below come from the manufacturer datasheets for the "PG3AL panel + TR structure + HPL finish" configuration to EN 12825. Testing was carried out on structures up to 600 mm high (565 mm on this site); the data is averaged with a ±5% tolerance.

Load class to EN 12825. A typical office raised floor is class 1–2.

53kN/m²

Uniformly distributed load at 2.5 mm deflection — about 5,400 kg per square metre.

REI 60

Panel fire resistance. Core reaction to fire — class A1fl.

EN 12825 class scaleconcentrated load, kN

1 · 4

2 · 6

3 · 8

4 · 9

5 · 10

6 · 12

Values are taken from the manufacturer datasheets to EN 12825.

Design

DIVIO came in before supply — at the design stage. We selected the system for the rack loads and issued the layout grid: panel placement across the three zones, start points, stringer direction, the finished floor datum and TR frames under every server rack.

Working it out up front removes errors on site: cutting is calculated in advance, the nodes under the racks land in a rigid frame, and the bill of materials matches the actual volume.

Raised access floor design for the Aktau server room — panel layout grid and the built TR stringer structure — From drawing to structure: on the left, the layout grid (hatching marks the TR frames under the server racks, arrows show stringer direction, 600×600 mm module); on the right, the same structure in steel on site.

A standalone service

Raised access floor engineering

Load calculations, structure and core selection, the layout grid, specifications and drawings. Available without installation.

Order engineering

Solution

PG3AL panel. Calcium sulphate at 1,600 kg/m³ density, 34 mm thick, an anti-squeak taped edge and a galvanised steel sheet underneath. On top, a 0.9 mm antistatic HPL — abrasion-resistant, rated for technical rooms.

Calcium sulphate was chosen for fire resistance and dimensional stability: unlike chipboard it does not take on moisture and behaves predictably in a dry climate.

TR structure. Developed for server rooms and data centres — for banks of racks and dense cable infrastructure. Adjustable pedestals on a Ø98 mm base with eight anchor points, 40×40 mm C-profile stringers in hot-dip galvanised steel; conductive gaskets at the nodes damp noise and centre the panels.

TR pedestals slide along the stringer and are added in place — which let us route around the load-bearing columns and the underfloor obstructions without losing rigidity.