S7 RHOMBOS expanded metal ceiling rail channel system

Expanded metal ceiling characterised by great stability

The open expanded metal ceiling S7 RHOMBOS offers a host of applications. The rail channel system is especially suited for sales areas, transport building or other applications requiring ceilings with integrated sign-posting. Its solid design also makes it suitable for sports halls, wall cladding or alike.

  • rail channel system is distinguished by highly flexible design options
  • S7 hook-in system allows for easy planning and is easy to dismount from the bottom side at each point
  • can also be supplied sound-proof or sound-absorbing
  • contributes directly to Green Building and LEED certification

Technical information


Normally expanded: max. 3‘ – 7“ × 8‘ – 3“ [1100 × 2500 mm]
Flat rolled: max. 2‘ – 8“ × 8‘ – 3“ [800 × 2500 mm]
Larger dimensions on request.

Material and surface

Galvanized steel, aluminum and stainless steel. The galvanized steel and aluminum can be powder-coated in white matt [RAL 9016 matt DUROPLAN Type 1] or according to customer specifications. The coating thickness is approx. 60 µm. Other powder coatings are possible.

Aluminium: coil anodised or mirror polished
Stainless steel: brushed or mirror polished
The powder-coated blanks can also be printed with graphics and textures of your choice.

Acoustics and meshes

As standard and without acoustic effectiveness. Panels can be supplied with black acoustic fleece [closed area]. 
Standard mesh sizes: M260_1.5 [open area ~ 66 %] or M400 [open area ~50 %]. Other mesh types may be available upon request.

Fire behaviour

In accordance with ASTM E84 Flame Spread Index for steel is 25 or less and Smoke Developed Index for steel is 50 or less.


S7 RHOMBOS expanded metal ceiling rail channel system


Our RHOMBOS expanded metal ceilings are the ideal solution in various types of building, particularly whenever large, free ceiling cross sections are required. Expanded metal ceilings are acoustically neutral at defined heart frequencies and can be adapted to suit local requirements using inserts.

Find the latest expanded metal ceiling projects here >