Enigma vertical blinds for trapezium and angled windows. A bespoke sloping headrail, louvres 89 or 127 mm wide, precise adjustment of every louvre and easy light control. Professional surveying, manufacture and installation from FENSTORA. The price is calculated instantly — VAT included.
Enigma 89/127 mm is a dedicated vertical blind system for windows with an angled top: trapezium structures, roof windows, glazed walls and non-standard architectural openings. The sloping headrail is made individually to the exact dimensions of the window, so the blind follows its geometry neatly and looks like a proper part of the interior rather than a technical compromise.
The system is supplied with vertical louvres 89 or 127 mm wide. Each louvre is cut to its own length, so the bottom edge of the blind stays level even where the top of the window slopes steeply. Louvre lengths can be fine-tuned during installation itself.
The louvres are tilted with a chain, letting you vary the level of light and privacy smoothly. The blind is drawn across with a cord. A special tensioner keeps the mechanism steady and stops the louvres from sliding on their own along the sloping headrail.
To place the order we need the dimensions of sides A, B and C. The permissible angle and the maximum width of the structure are calculated individually: the steeper the slope, the narrower the possible width of the system. According to the technical documentation, sloping headrails are produced after a preliminary consultation, and the recommended maximum angle is up to 45°.
We carry out a professional survey, choose a suitable fabric, calculate the load on the mechanism and make the blind to match the exact shape of the window. The result is a functional sun protection system that highlights the unusual architecture of the room and gives you comfortable light control even on the most awkward windows.
Book a survey of your trapezium window — the specialists at FENSTORA will prepare a technically sound and attractive Enigma solution for your project.
The headrail runs at the angle of the pitch — no gaps at the top.
The Enigma system — large loft and panoramic openings.
Bespoke manufacture to the exact angle of your window.
The louvres tilt and draw across just like ordinary vertical blinds.
The sloping headrail follows the pitch: louvres of different lengths cover an opening of any geometry evenly — sloping to the left or right, triangular or fully glazed.
Enter the width and the two heights of your angled window — the calculator works out the slope, checks it against the Enigma data sheet and shows the price including VAT.
A — the height of the tall side, B — the height of the short side, C — the width of the opening. All dimensions in centimetres. The slope is α = arctan((A−B)/C); per the Enigma data sheet it must not exceed 45°, and the permissible width depends on the angle — the calculator checks this. For a triangular window enter B = 0.
| Type | Trapezium vertical blinds (sloping headrail) |
| System | Enigma 89/127 mm |
| Shape | An angled top — for loft rooms, conservatories and bays |
| Slat width | 89 mm or 127 mm |
| Max. width | up to 525 cm (89 mm louvre) / 700 cm (127 mm louvre) at angles up to 5°; the steeper the slope, the narrower it gets — at 45° up to 270 / 320 cm |
| Angle of inclination | up to 45° per the Enigma data sheet |
| Max. height | 450 cm (tall side) |
| Manufacture | Bespoke, to the measured angle (after consultation) |
| Controls | Chain and cord |
| Fabrics | Fabric catalogue: Berlin, Carina, Miami, Patagonia, Starlet, Screen, blackout Berlin BO / Starlet BO — 83 fabrics, chosen in the calculator |
| Manufacturing time | 6–15 working days |
Enigma fabrics and technical data
Vertikal fabric cataloguePDF · collection for vertical blinds Enigma 89/127 mm — technical data sheetPDF · sloping headrailsReal projects with angled windows — verandas, loft rooms and conservatories.
Curtain track Enigma is made at an angle to match your pitch, and every louvre is cut to its own length. The louvres tilt on their axis and draw along the slope, so the blind follows the shape of the window with no gaps at the top.
Sloping headrails are made after a preliminary consultation about the specific window: our fitter measures the angle on site and the manufacturer confirms that it can be produced. That is why a professional survey is always the first step.
The Enigma system is designed for headrails up to 700 cmwide; each louvre length is adjusted separately — handy for stepped sills too.
The same as for ordinary vertical blinds: semi-transparent and dense, dozens of colours, louvres of 89 or 127 mm. We bring samples to the survey — you see the fabric in your own light straight away.
The price is calculated individually once the angle and dimensions are measured — send us an enquiry and our fitter will come with samples. Professional surveying throughout Latvia and the Baltics, we also work across Europe. Production takes 6–15 working days.
Send us photos and the dimensions of your angled window — we will come, measure the angle and quote.
