#cca pine

  This wooden deck was built in Doone Village Retirement Village in Padfield Park, Pinetown.

We used an H3 and H4 CCA Treated substructure with 19 x 68mm balau deck boards. The balustrade was balau pots and capping with marine grade wire rope. It is always better to use wire rope when you don’t want the view to be impeded when sitting on the…

This was an old deck in Kloof that we refurbished recently. It had balau deck boards on top of a balau structure. Of the 11 joists that made up the structure only 2 were still in a fair condition. The rest had rotted and we needed to replace them. Please see this article on the pros and cons of using balau as a structure. https://blog.thewoodjoint.co.za/2015/06/21/balau-vs-cca-treated-substructure-in-your-wooden-deck-durban-and-cape-town/

The deck was fairly old (20 years plus). 20 years ago most deck builders used balau as a structure. Over time they have come to realise that a chemically treated pine structure will out last a balau structure because it is chemically treated and therefore it’s behaviour is known. The process of pressure treating is safe and arguably does no more damage to the environment than cutting the purpose grown tree down in the first place.

We ended up lifting all these deck boards, numbering them and replacing them in their same position so that we could use the same screw holes. Rather than sliding new joists in below the deck boards.

The deck boards themselves where quite mottled with black algae but the wood itself was still ok so we pressure cleaned the deck and then oiled it with a penetrating oil. The balustrade is all new as the old balustrade had rotted away beyond repair and had been removed by the client.

For a free no obligation quote on your new deck build or deck refurbishment please contact us on 031 – 762 1795 or use the contact us form below.

This wooden deck we built in Waterfall, Durban was part of a new build at Focus on Ithemba along Blessing Ninela Road, Waterfall. They were building a new boardroom and office complex and part of the design was a wooden exterior deck.

The job was referred to us by Mass Landscapes, Miles Steenhuysen, who was contracted to do the landscaping. His details can be found here.

In consultation with Miles and the project manager we designed the deck so as to flow around this office complex comfortably and aesthetically and within budget.

The structure of the deck was the standard H3 and H4 CCA treated pine. H3 and H4 CCA treated pine is suitable for outdoors decks. H3 has a life span of a minimum of 50 years and correctly treated H4 pine can live in the ground in constant contact with wet soil for a minimum of 20 years. These are guidelines provided by www.sawpa.co.za. The full document can be found here.

We used 19 x 68mm yellow balau deck boards as the surface. There is a difference between red and yellow balau. The red balau, which is a bit cheaper in South Africa, is a lot more porous and less dense than the yellow balau and as a result will absorb and retain water more easily than yellow balau and will therefore probably rot more quickly. We use only yellow balau which is the most cost-effective hardwood for decking in South Africa. It is not correct to assume that treated pine is cheaper than balau deck boards. Please see here for an article on the difference between balau and pine in decking.

The building we were attaching this deck to was not completely square with itself as it was an old building that had been extended. As such one needs to be very careful when building wooden decks against walls that aren’t square or straight. At some point there will need to be a correction to eliminate the problem and it needs to occur where it is less visible. Either the deck can be built square to itself but it will highlight the errors on the building or the deck needs to be built off square to take up any difference between the building and the deck in a place where it is less visible and can be concealed.

Screw holes we filled with epoxy and sanded flat. The epoxy used was a clear epoxy which was mixed with saw dust to match the colour. The epoxy in the screw holes prevents water sitting in the counter sunk screw hole and being absorbed up the end grain which would cause rot to set in more quickly. The deck can be oiled after sanding or left to grey naturally.

For a free no obligation quote on timber decking and related construction, we can be contacted on 031 – 762 1795 or use the contact us form below.