Local conditions
Sliding doors are how this coast is built
Every House Here Has A Four-Metre Opening
Housing stock from Coolangatta to New Farm is built around the sliding door, because the climate rewards it. That single design decision is why verticals never went away here the way they did in Melbourne. You need something that covers three or four metres of glass, lets you walk through it a dozen times a day, and does not have to be fully raised to let you out onto the deck.
The second problem is the breeze. A door that is open for eight months of the year moves anything hanging in it, and louvres that are not weighted and chained properly will tangle, clatter and eventually walk off the track. Verticals live or die on the bottom chain and the carrier quality — not on the fabric — and that is where the cheap ones are cheap. Pair them with shading sized for a western sun and a west-facing living room becomes usable at four in the afternoon.
Which is why we ask how often the door actually gets used before we quote a track. It is a boring question and it is the one that decides whether you are still happy in five years.