Horizontal slats that tilt to steer light — full view, filtered light, or full privacy, at any blind height. The most adjustable interior treatment there is.

Slats come in 25mm (crisp, the most popular) or 50mm (bolder, fewer lines). They're the moisture champions of the range — the right call for bathrooms, kitchens and laundries, where fabric struggles. Powder-coated finishes hold up well against Pretoria's strong summer UV, in a huge colour range including woodlook finishes, and they're the most budget-friendly slat option.
50mm basswood or bamboo slats bring a warm, architectural feel that suits Menlo Park's older sash and casement windows especially well — studies, main bedrooms, and anywhere "real material" earns its keep. Keep them out of high-steam rooms; a good lacquer handles normal humidity fine. They're heavier than aluminium, so very wide windows sometimes need splitting or ladder-tape support.
A roller is open or closed by degrees; a venetian steers light direction — tilt up for glare-free daylight, tilt down for privacy from a neighbour's upstairs window, close flat for dark. For homes with hour-by-hour sun swings across the day, that's a genuinely different level of control than a plain roller offers.
What follows is a guide by the square metre, installation included. Aluminium slats in 25mm or 50mm run about R1,000 to R1,500 per square metre. Real timber is the step up at R1,600 to R2,600, for the material and because the extra weight wants a stronger headrail and better ladder tape if the blind is to hang true over the years.
With motorised tilt, aluminium runs R2,500 to R3,600 per square metre and timber R3,000 to R4,500, because a heavier slat asks more of the motor. A narrow bathroom or landing window carries a minimum charge whichever you choose. None of it is a quote — the exact figure per opening is written after the free measure, once we have seen the reveal and held the slat against your own frames.
Timber for period sash and casement windows, aluminium for wet rooms and contemporary glazing — fitted throughout the established belt around Menlo Park.