The Trinity vertical from 247 Blinds is a wide-window and patio-door blind built around blackout and fire-retardant fabrics, with 69 colourways from £15.85. Vertical blinds suspend fabric vanes from a top track; they rotate to control light and slide aside to open, which makes them the natural choice for windows wider than they are tall. Trinity's emphasis on blackout and FR fabrics gives it a practical, slightly utilitarian focus.

Who it suits

Patio doors, bay windows and any opening that is broad rather than tall - the situation where roller and venetian blinds become unwieldy and a vertical comes into its own. The vanes rotate to admit light at an angle or close for privacy, and slide to one side to clear the glass entirely, which suits doors you walk through.

The blackout and fire-retardant emphasis points to specific uses. The blackout fabrics suit bedrooms with wide windows where darkness matters; the fire-retardant options are the ones to look at for rented flats, student accommodation or anywhere with FR requirements. Many of the colourways pair a blackout or FR fabric with a practical neutral.

Verticals carry a slightly commercial association - they are common in offices - so they suit some interiors better than others. In a contemporary or practical room they look at home; in a soft, traditional scheme a roman or curtain might sit better. Note too that the vanes can sway in a draught unless weighted, though most include bottom weights and a linking chain.

The colours

69 colours available

Standard
Blackout Fuschia from £15.85
Standard
Blackout Lavender from £15.85
Standard
Blackout Truffle from £15.85
Standard
Fr Blackout Alexandrite from £15.85
Standard
Fr Blackout Balance from £15.85
Standard
Fr Blackout Empress from £15.85
Standard
Fr Blackout Firefly from £15.85
Standard
Fr Blackout Kingfisher from £15.85
Standard
Fr Blackout Perdix from £15.85
Standard
Fr Blackout Pitch from £15.85
Standard
Fr Blackout Tranquil from £15.85
Standard
Fr Blackout Ursine from £15.85
Standard
Blackout Oatmeal from £15.85
Standard
Blackout Cosmic Black from £15.85
Standard
Blackout Baby Blue from £15.85
Standard
Fr Blackout Blue Depths from £15.85
Standard
Fr Blackout Blue Haze from £15.85
Standard
Blackout Oyster Grey from £15.85
Standard
Blackout Light Grey from £15.85
Standard
Blackout Platinum from £15.85
Standard
Blackout Soft Grey from £15.85
Standard
Fr Blackout Cashmere from £15.85
Standard
Fr Blackout Cosmic Grey from £15.85
Standard
Blackout Soft Pink from £15.85
Standard
Fr Blackout Purple from £15.85
Standard
Blackout Poppy Red from £15.85
Standard
Fr Blackout Milk White from £15.85
Standard
Fr Blackout Cardinal from £15.85
Standard
Fr Blackout Chickadee from £15.85
Standard
Fr Blackout Parakeet from £15.85
Standard
Blackout Fossil Grey from £15.85
Standard
Fr Blackout Deep Grey from £15.85
Standard
Fr Blackout Heron Grey from £15.85
Standard
Fr Blackout Seal Grey from £15.85
Standard
Blackout Daffodil Yellow from £15.85
Standard
Blackout Tropics from £15.85
Standard
Fr Blackout Aztec from £15.85
Standard
Fr Blackout Cerulean from £15.85
Standard
Fr Blackout Hestia from £15.85
Standard
Blackout Alabaster from £15.85
Standard
Blackout Delph Blue from £15.85
Standard
Blackout French Blue from £15.85
Standard
Blackout Prussian Blue from £15.85
Standard
Blackout Royal Blue from £15.85
Standard
Blackout Mayan Brown from £15.85
Standard
Blackout Soft Green from £15.85
Standard
Blackout Cotton White from £15.85
Standard
Blackout Off White from £15.85
Standard
Blackout Vanilla from £15.85
Standard
Fr Blackout Rice Paper from £15.85
Standard
Fr Blackout Silk White from £15.85

The palette is organised around function: a run of blackout colourways (Dusk, Truffle, Oatmeal, Navy, Teal) and a set of fire-retardant ones (Alexandrite, Kingfisher, Tranquil, Blue Depths). The neutrals - Dove, Oyster Grey, Ash, Oatmeal - are the versatile choices for a window that should stay quiet; the blues and brighter FR shades are there where you want some colour. Check whether a given colourway is the blackout or the FR version, as that determines its suitability for your room.

Price by your dimensions

Enter your window size. We round up to the next standard size, which matches how the retailer actually quotes you.

At £15.85 to start, Trinity is reasonably priced for a vertical, though as with all made-to-measure blinds the figure for a wide patio door will be well above the entry price. Enter your width and drop for the price at your size; it rounds up to the next standard size as 247 Blinds quotes it.

How it compares

Against a roller or roman on a wide window, the vertical is simply the more suitable format - it spans a broad opening cleanly and slides aside for door access, where a single wide roller would be heavy and a roman impractical. On a standard-proportioned window, though, a roller or venetian usually looks better.

Against a panel blind (another wide-window option), verticals give finer light control through vane rotation, where panels slide as solid sections. For a patio door you walk through daily and want to angle for light, the vertical is the more flexible choice.