GT MAT — Design office
Products designed here,
not picked from a catalogue
100% of GT MAT products are born in our own design office. That is our difference — and what makes genuine made-to-measure possible.
Why design everything ourselves?
Most market players resell imported products drawn for continental Europe. Under the Caribbean climate — salt, intense UV, permanent humidity, the cyclone season — those products quickly show their limits: undersized sections, unsuitable fasteners, finishes that age badly.
We made the opposite choice: to design everything ourselves. Every profile, every assembly, every finish of our decking, pergolas and railings is drawn by our own R&D for the real constraints of our islands. Our partner factory then produces to our drawings, under our control — and our teams install, in Guadeloupe as in Martinique.
This short circuit has a direct consequence for you: when you call GT MAT, you talk to the people who designed the product. Not to a reseller reading a data sheet.
From idea to your terrace
01
Research & drawing
Our design office draws every profile and every assembly: sections, ribs, fixing systems. The specification is Caribbean from the very first line — sea spray, UV, strong winds.
02
Prototype & validation
Every product is prototyped and put to the test before joining the range: board adjustments, assembly trials, finish selection. Nothing is sold without passing through our hands.
03
Production to our drawings
Our partner factory produces exclusively to our drawings and requirements: Qualicoat-certified powder coating, stainless-steel fasteners, tolerance control. The design remains 100% GT MAT.
04
Installation by our teams
Our teams install from our two bases, in Saint-François (Guadeloupe) and Les Trois-Îlets (Martinique), with organised freight to Saint-Martin and Sint Maarten. One contact, from first sketch to final bolt.
The proof: the NEODECK board
The NEODECK decking board sums up our method: a 174 × 25 mm section drawn by our R&D, an anti-slip grooved surface, internal ribs that stiffen the board, and an invisible clip-on rail that speeds up installation and lets one board be removed without touching the others.
This profile is our own creation. You can handle it in 3D, exactly as it is produced, on the decking page.
Handle the NEODECK board in 3D →Our requirements, in black and white
Qualicoat
Qualicoat-certified powder coating on every profile we install.
Railings
Height, infill and anchoring defined after studying your substrate.
Certified winds
Pergolas certified for 160-180 km/h (Classic) and 180-220 km/h (Premium) — the certification appears on the quote.
Protection quartet
Qualicoat powder coating, stainless-steel fasteners, anti-corrosion treatment and bituminous paint.
Ten-year warranty
Our installations in Guadeloupe, Martinique, Saint-Martin (French side only) and Saint-Barthélemy are covered by the French ten-year warranty.
True made-to-measure
Millimetre dimensions and your choice of RAL shade: the product adapts to your project, not the other way round.
Talk directly to the designer
Describe your project: a member of the design office replies with a written quote within 48 h.
Request a free quoteDiscover our in-house designed products
- Made-to-measure aluminium decking
- Bioclimatic pergolas
- Aluminium railings
- Our philosophy
- Our Caribbean projects