This was a wooden deck built in balau for a client who had opened a Bed and Breakfast on the coast. As you can see form the pics the wooden deck was built in the front of the property overlooking the sea. There were of course strict time lines in which we had to complete this wooden deck as they had already made confirmed bookings. With these job which are a fair distance from home we normally rent accommodation and pay the builders a live out allowance for food etc. It inevitably pushes the cost of the build up slightly which is unavoidable.
There are some before and after pics in this article. We had to excavate the soil below. It is always best to leave a fair amount of space below the bottom of the structure and the bottom of the deck boards to allow sufficient airflow for water evaporation. If the deck structure is touching the ground then one would need to use H4 CCA Treated timber which has a minimum life span of 20 years in constant contact with wet soil as per SAWPA (South African Wood Preservers Association). H3 CCA Treated pine as a structure which is NOT in constant contact with wet soil has a minimum life span of 50 years if correctly installed. So it makes sense to keep the structure to H3 for cost purposes, and expected minimum life span, but keep it well clear of any soil. By allowing air to flow freely between the structure and the ground keeps everything relatively dry below and the deck structure will last a lot longer. Continual dampness below speeds up rot and premature failure. In this instance we excavated to at least 300mm below the structure.
There was a pool that had been installed prior to our build by Clear Blue Pools – Gary Botha (071 679 1013) and we worked closely with the pool builder so that the concrete ring beam of the pool was set down 60mm from the desired deck height (top of deck). This allows us a 40mm batten on top of the concrete ring beam and a 19mm deck board. 40mm is the minimum we like to allow for this purpose, again to allow for sufficient air flow to keep things dry between the deck surface and the ring beam. These cleats or battens are fixed directly to the concrete ring beam and the rest of the joists which are suspended above soil become a 38 x 114 to give it lateral strength.
The rest of the deck was pretty much the same then as the other decks we’ve built using 19 x 68mm yellow balau deck boards, counter sunk screw holes filled with clear epoxy and saw dust mixture, sanded flat and oiled using a decking oil.
For a free no obligation quote on your deck please call us on 031 – 762 1795 or use the contact us form below.
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.