Balau Decking: Strength and Beauty for Your Outdoor Spaces

Getting Balau Decking Quotes in Cape Town

Balau is the timber most Cape Town decks end up being built from, and there is a straightforward reason for it. The two things that destroy decks on this coast are relentless summer sun and salt-laden southeaster, and balau’s density is what lets it shrug off both.

It sits mid-range on price at roughly R2,250 per square metre installed. More than pine, marginally under garapa, well under massaranduba. For most homeowners it is the point where durability and cost meet sensibly in Cape Town.

What balau wood actually is?

Balau is a trade name rather than a single species. It covers several closely related Southeast Asian hardwoods, mostly from the Shorea genus, sold under one commercial label because they behave near enough identically.

Density is the whole story

At roughly 850 to 950 kg per cubic metre, balau is around twice the weight of South African pine. That density is what resists denting, what slows moisture ingress, and what gives the timber its working life. Nearly every practical characteristic of balau traces back to it.

Colour and grain

Fresh boards run from honey brown through to deep reddish brown, and there is real variation board to board. A newly laid balau deck looks patchy for the first season. It evens out as the timber oxidises.

How balau wood performs in Cape Town conditions

Sun and UV

Left unfinished, balau greys to a soft silver within roughly eighteen months on a north-facing deck. This is surface oxidation, not degradation. The timber underneath is unchanged and a light sand brings the brown back.

Salt air

Balau itself handles salt well. The vulnerability on coastal properties is the fixings, not the boards. Stainless steel screws are not optional in Bloubergstrand, Kommetjie or Simon’s Town. Galvanised fixings will bleed rust stains down the boards within two seasons.

Movement and surface checking

Dense hardwoods move as they equilibrate. Expect slight cupping and fine surface checks through the first summer. Correct board spacing, sealed end grain and letting the timber acclimatise on site before fixing all reduce it. None of it is structural.

Where balau decking works best

Pool surrounds are the obvious case. The density handles constant wetting and drying better than softer timbers, and the surface stays comfortable underfoot where a dark composite would not.

Exposed coastal decks are the second. Anywhere getting full afternoon sun and salt wind is a job balau is genuinely suited to rather than merely adequate for.

High-traffic domestic decks are the third. Balau does not dent under furniture legs, and it takes a decade of foot traffic without the surface roughening the way pine does.

It is less obviously right for a small shaded courtyard deck, where you would be paying for durability the site never tests, or where the substructure has already been built to a lighter specification.

Balau decking prices per m2

Around R2,250 per square metre installed, covering boards and a standard timber substructure on a level, accessible site.

Four factors move that figure. Height off the ground, because bracing and balustrade requirements climb with it. Shape, because curves, pool cut-outs and level changes add cutting time and waste. Access, because material carried through a house or up stairs is labour before a board is laid. And balustrades, which are priced separately and are often required above a metre.

Run your dimensions through our very own decking cost calculator to get a cost estimate in 3 simple steps!

Maintenance and finish options

Two legitimate approaches, and the choice is aesthetic rather than technical.

Let it weather. Wash down annually with a deck cleaner, do nothing else, accept the silver-grey. The deck lasts just as long.

Keep it brown. Oil once or twice a year with a UV-protective decking oil. Exposure decides the frequency: a north-facing Table View deck works harder than a shaded Newlands one.

What is not optional either way is keeping the gaps between boards clear. Trapped leaf litter holds moisture against the timber and that is what actually shortens a deck’s life.

Balau wood decking compared with the alternatives:

Against pine, balau costs roughly a third more and lasts around twice as long. Against composite, balau costs less per square metre and looks like real timber, at the price of annual maintenance composite does not need.

Contact us for a competitive quotation so you do not have to spend time shopping around waiting weeks to compare prices. Our quality genuine reviews should satisfy you to proceed with our contractors.

Key Features: Balau is a dense, durable hardwood that’s naturally resistant to weather and insects. Its rich reddish-brown color adds a luxurious touch to any outdoor space.

Transform Your Space with Balau Decking

Balau decking is the perfect blend of strength and style. Get in touch with us for a free quote and let us help you create the perfect outdoor space. If you are interested to learn more about other wood species to choose from for your decking, pergola or other products, visit this article here.