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 calcium sulphate panel paired with the reinforced tubular-pedestal structure reaches class 6 to EN 12825 — the top step of the standard.

The figures below come from the manufacturer datasheets for the "calcium sulphate panel + reinforced 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 reinforced 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 reinforced stringer structure — From drawing to structure: on the left, the layout grid (hatching marks the reinforced 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

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.

Reinforced 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.

The 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.