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Tetral Line

General Information

TETRÁL Line is the linear solution of Tetrál b alumi- nium ceiling system, made up of modular panels which are fully downward demountable.With thin and very decorative “U”-shaped lines, 5 or 10 mm wide, this product features parallel profiles hold by upper support bridges which placed over the panel will disappear when looking across the ceiling.  Provided in two variations, TETRÁL Line b5 and TETRÁL Line b10, it is the perfect solution for every project requiring exclusive design.

TETRÁL Line features 1200x600 mm modular panels, made of "U" blades with a base of 5 or 10 mm and height of 30/40 mm, which can be spaced at any interval (pitch) from 15 mm. The modular panels, 1200x600 mm, are suspen- ded from the concealed Delta suspension system. Upon request, special modules are available: width up to 1200 mm length up to 2400 mm (b5) and 1800 mm (b10).

TETRÁL Line blades are made by BENDING SYSTEM, which gives: the accuracy of profiles, more square edges and blades perfectly straight.TETRÁL Line can be supplied either plain or perfo- rated, to achieve aesthetic and acoustic require- ments. Standard perforation patterns are as fol- lows: hole ø 1,50 mm, 22% free opening, 3 mm pitch hole ø 2,50 mm, 19% free opening, 5 mm pitch. A wide range of finishes either from pre-painted or post-painted aluminium is available, according to the RAL, NCS, PANTONE and SIKKENS colours.

Each panel is fully downward demountable and can remain hinged-down in the springs without being totally removed.
The panels swing down from the short side (600 mm) and remain suspended at full length. Upon request, hinge-down from the long side (1200 mm) is possi- ble too.

TETRÁL Line is usually supplied unassembled. It allows for easier packages and more economic transports. Upon request, the panels can also be supplied assembled.

CEIR open cell ceilings are classified incombustible in compliance with international standards.


Tetral Line Details

No                   components per sq.m.                                                       Unit                                                            Panel 800x800

1                     D001 suspension channel                                           lm                                                                       0,80

2                        coupler                                                                            pc                                                                       0,28

4                         D004 rod                                                                      pc                                                                       0,80

3                          D003 spring                                                                pc                                                                        5,56

Petek Tetral Line - Model - PDF

File Name                                                                                                                                                                                                                                                                           DWG                                       PDF


Bandraster 75mm - PDF

Bandraster 50mm - PDF

File Name                                                                                                                                                                                                                                                                                  DOC                            XLSX                                PDF


The concealed Delta suspension system allows for easy and fast placement or removal of TETRÁL Line. The suspension system gives a trackless appearan- ce and allows for demounting of the panels from below. The minimum free space required for comfortable demounting is 80 mm only.

Deckon Bandraster Ds En

unassembled / assembled panels

0,40 mm. th. aluminium

"U" base 5 (h30) veya 10 (h40) mm

... mm.

1200x600 mm



Supply form


Section blade


Panel size



Tetral Line Datasheet - PDF

File Name                                                                                                                                                                                                                                                                                                                                                                     PDF



Tetral Line Details 2


5                           D010 panel support bridge                                 pc                                                                       0,80

Tetral Line Details 3
Tetral Line Details 4
Tetral Line Details 5
Tetral Line Details 6
Tetral Line Details 7

Petek Tetral Line - DWG

Tetral Line Details Montage
Tetral Line Details Montage 2
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