Balau pool deck and walkway – Kloof, Durban

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We engaged with Masslandscapes, a landscaper and garden designer (082 468 3759) on this balau pool deck project in Kloof, Durban to provide a solution for the client who wanted an area alongside their pool that they could utilise more. Before the project started there was the standard paved area of about 1m alongside the pool which was bordered by grass of about 1m and then a flower bed, before dropping down a small bank to the rest of the garden. The client wanted to increase the size of usable area alongside the pool.

Initial designs were to have a very similar layout as per the pics above with a semi-circle sort of node protruding over the bank to gain height and create a look out area overlooking the Kloof Gorge. This proved to be out of budget and would probably have resulted in doubling up sitting area as there was already a large tiled verandah extending out from the living area doors. The final design was settled on which is what you see in the pics.

We needed to excavate some of the garden down and move this top soil for use in another area of the garden. It is always recommended that sufficient space be left below the deck and below the bottom of the lower most bearer or joist to allow enough air flow to dissipate and evaporate any water that settles below the deck. Too often I have seen deck boards rotting prematurely due to insufficient space being left below. Water gets trapped below and the underside of the deck and structure remains damp. I normally recommend at least 150mm below the lowest point of the structure. Once we had enough space below we installed our structure using H3 CCA treated pine. Please see here for an article on the use of CCA Treated pine as structures for decks and balau as deck boards. All cut ends of treated pine, as a matter of course, are re treated with an approved end sealer. When a CCA treated piece of pine is cut it exposes a section that is not treated and can accelerate rot.

Post to ground are set in concrete and installed at the correct distance on the bearers to stop any bounce in the bearer and to provide enough support to prevent the bearer breaking. There are guidelines supplied by engineers for distances that these supports need to be installed. These posts need to be H4 CCA treated pine as they are in constant contact with wet soil.

A lot of this job involved lining up existing paving, pool copings, patio etc. to the deck so the lines were seamless and everything ties in neatly. A walkway, as can be seen from the pics, was created to run alongside the existing raised patio for access to the rest of the garden.

In finishing our decks we fill the screw holes with a clear epoxy mixed with saw dust to match the colour as closely as possible and then grind and sand it flat. Standard wood filler doesn’t quite do the trick and fails with exposure to weather. The filling of screw holes is a very important aspect of deck building. It prevents water sitting in the counter sunk screw hole which would then travel up the end grain of the balau and cause early rotting of the balau deck boards. We use a clear epoxy so that we can match the colour to the deck boards. Off the shelf epoxies are either grey or white in colour and don’t take the saw dust that well to match the colour. Also these epoxies dry very hard. It is better to use an epoxy that is semi pliable when dry. Through seasons of dry and wet, hot and cold, the inside diameter of the counter sunk screw hole will vary ever so slightly. If the epoxy has dried too hard it will cause it to pop out leaving a weak spot on the balau deck board. During maintenance intervals these should be checked and replaced if they have in fact popped.

The deck was oiled using a zero wax content product. The beauty of oil is that it soaks into the wood and therefore cannot peel and flake. A peeling deck is an expensive deck to maintain because you would need to sand off the coating completely to avoid a patchy finish when re-applying the coating. Whereas an oil simply degrades due to exposure to UV over time. A pressure wash and re-oil is all you need to do at maintenance intervals which is relatively inexpensive and easy to do as opposed to sanding the deck again. The oil also allows the natural beauty of the wood to shine through resulting in a more natural wood looking product. Coatings give them the effect of a painted deck especially over time when layer after layer has been applied.

For a free no obligation quote on your timber balau decking, walkways, pergolas and other outdoor timber products, please call us on 031 – 762 1795 or use the contact us form below. We operate throughout KZN.

Wooden balau Deck Built in Umkomaas – KZN South Coast

This wooden deck built in Umkomaas on the South Coast of Kwa-Zulu Natal turned into a very nice job with many extras and a happy client who paid timeously. What a pleasure.

We removed and dumped an existing pine deck that had started to show signs of failure in the deck boards themselves. The structure was still ok as it had been built using H3 CCA Treated pine which is suitable for outdoors for a minimum of 50 years as per www.sawpa.co.za. It was the deck boards that had started to rot at the screw hole due to water sitting in the screw hole for long periods of time. It is very important to firstly close that screw hole at the time of building the deck and then to maintain them going forward to stop any water getting into the screw hole. Water will travel very quickly along the end grain of wood and this screw hole provides an ideal point of entry for water. They are simply filled with a clear epoxy mixed with saw dust to match the colour and then sanded flat before sealing or oiling the deck.

Once we had a clear slate we built a new deck using balau deck boards. We changed the design a few times as we built to accommodate the clients requirements. We tried to create a deck that would flow nicely from one level to the other. The top deck was built flush with the house and then we built steps at a 45 degree angle to gain access to the lower deck around the pool which extended along the front of the lower level sliding doors.

We included a curved front on the upper deck to break the straight lines and then clad that fascia as it was very visible when driving up the driveway. We normally include two deck boards as a fascia to the front edge of a deck to hide the structure below and finish it off neatly. In this instance we added four deck boards on the curve because the driveway is a lot lower then the deck and when driving up the driveway the underside of the deck was the first thing you see when entering the property. The client may still need to add planters with some plants in to completely cover that structure but the 4 deck boards give it a nice broad fascia which hides a lot of the structure.

The stairs were challenging. Originally they were to be curved risers and treads which would have meant either cutting deck boards at an angle and laying them straight or trying to bend the deck boards. The risers would have been easy enough by bending a deck board around the arc, but the treads would have been a bit more difficult because it would have meant bending the board through its width (not thickness). The centre of the circle, was off set to the corner of the deck or the top of the stairs and the centre of the circle occurred in the pool. So all in all not an easy task. Because the arc itself was quite gentle you would not have really noticed that it was curved so we opted for a straight edge to our risers and treads. Much easier and less problems going forward with deck boards trying to return to their original straight position. Often less is more.

For a free no obligation quote on your wooden deck, pergola, stairs and other timber works please call us on 031 – 762 1795 or use the contact us form below.

Timber Suppliers in Durban

As a spin-off of our deck building activities in Durban we started buying and selling decking timber. We found that due to the volume of timber we purchase we can secure it at a better rate and therefore provide it to the end-user, or contractor, at competitive rates.

We carry the most common decking timber sizes and species of timber. A brief outline of our stock follows.

H3 and H4 CCA Treated pine which is normally used for substructures. The most common sizes here are 38 x 114 used as joists and 50 x 228 used as beams. We stock them in various lengths to suit your needs. We also stock a 76 x 76 H4 CCA Treated pine square post. Other sizes are available with short lead times.

H3 treated timber is suitable for use outdoors where it is exposed to the elements and is subjected to occasional wetting (i.e. it gets wet, but has time to dry). Timber that is in constant contact with wet soil needs to be H4 CCA Treated. Timber living in fresh water is H5 treated and salt water requires H6 treatment.

We carry both 19 x 68mm and 19 x 90mm reeded (grooved) yellow balau deck boards. Again we stock various lengths to suit your needs from 2.4m to 4.2m lengths. They are all sourced from either Indonesia or Malaysia and are either MTCC (Malaysian Timber Certification Council) certified or PEFC Certified. (Programme for the Endorsement of Forest Certification).

We also stock a range of structural balau ranging from 30 x 40 to larger 30 x 102mm and 30 x 215mm pieces. Although we don’t carry larger pieces, they can be sourced relatively quickly.

Other decking products such as Massaranduba and Garappa are also available with relatively short lead times.

Decking screws, sealing agents and other timber decking supplies are also available to provide a one stop shop for all your decking requirements.

We will also assist in the design of your deck, if required, and we can assist in calculating quantities in order to limit waste.

For a quote on all your decking timber requirements please call us on 031 – 762 1795 or use the contact us form below.