Tetral Inverse

TETRAL INVERSE open cell ceiling modules are similar to the classic grid design, except its blades all downwards curved in only one direction and perforated. Designed to seamlessly connect to one another Tetral Inverse panels look great as either a continuous, uninterrupted field or as smaller sloping squares. Plus, the panels are designed to be combined with acoustic pad, so you can get acoustic control and elegant design in one product.
Ceir - Tetral Inverse open cell ceilings

Product in Use

Key Features

Open Accessibility in Plan
TETRAL INVERSE design makes integrating systems above or below the modules simple and feasible. Easily removable fins and open structure makes accessing lights, HVAC, rigging points, plumbing, AV equipment, and life safety systems easy for your maintenance team.

Wide Color Range
Choose from a large range of CEIR colors and wood textures. Mix and match colors to accent fins and complement the color scheme of your space.

Supply Solutions
We make TETRAL INVERSE easy for you to specify standard or customized modules that can be easily field-modified around anticipated and unforeseen site conditions during the installation.

Continuous Surface
TETRAL INVERSE provides continuity in all directions across your space. In addition, our optional hanging points offer a fine-tuning capability for installers. Our custom formulated material thickness and density ensures rigidity that limits deflection.

Acoustic Performance
TETRAL INVERSE – is perforated and designed to be combined with acoustic pad. The impact of noise from everyday annoyances like ringing, typing is reduced, and in a more pleasant and productive environment chatter results.

Panel Materials & Colors

finiture e materiali di base
White, Black and Silver
Custom Ral/Ncs

Technical Details

TETRAL INVERSE features 600×600 mm or 1200×600 modular panels, made up of “¸” – shaped blades 15 mm base and 40 mm height, which suitably coupled form a square cell. Cell sizes are available from 86×86 mm up to 150×150 mm. Height 40 mm.. Trackless system by Delta or T15
Supply form
TETRAL INVERSE is supplied perforated. Standard perforation patterns are as follows:
hole 1,50 mm, 22% free opening, 3 mm pitch – hole 2,50 mm, 19% free opening, 5 mm pitch

Panel / Module

Section / View

Measure (axbxh)

Suspension system


TETRAL INVERSEProduct Brochure PDF528 KB

How to specify:


Select the cell that best suits your vision and project needs. Pick from a variety of suspension solutions to provide the right performance while enhancing aesthetics.


Modules are available in a variety of colors, including naturalistic wood finishes. See our CEIR color brochures for more information.


All CEIR ceiling modules are scalable by design. Select the quantity of modules needed for your project.

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