Wooden Deck Waterfall September 2018

Wooden Deck Durban Waterfall

The video here shows the deck we built from the neighbours yard with the mist rolling down the hill in the early morning. Besides being an incredible sight to see one can see how this garden lends itself to a wooden deck.

The deck was built square off the house towards the boundary fence which over looks The Valley of a Thousand Hills near the Hillcrest area. On either side at the back of the deck there are stairs that lead back to each side of the house. The deck totalled about 80 to 90 square metres.

It was built the standard way we build with a treated pine sub structure and 19 x 68mm yellow balau deck boards. There is a difference between red and yellow balau deck boards. We stock only yellow balau deck boards and use only yellow balau in the building of our decks. The wooden balustrade was our standard vertical picket style balustrade, which is the safest at heights like these, as there are no gaps that exceed 100mm and is therefore compliant in terms of SANS building regulations. The balustrade is at a height of 1.0m. Once you start going higher than about 2 stories it is advisable to build the balustrade at 1.2m for safety reasons.

Stairs can either be built as open risers or closed risers. As open risers one can see through them whereas closed risers the underside of the deck is not visible. From a cost point of view they are the same so the choice would be made on whether or not you want to look below at the structure or not.

All our decks are finished by filling the counter sunk screw holes with a clear epoxy and saw dust mixture and then sanding flat before oiling with a decking oil. There is an option to leave the deck unoiled and to allow it to weather naturally and turn a grey colour.

In the still pic one can how effective lighting is below the capping to illuminate the deck yet not shine in your eyes. These are easy to install in that they are glued below the capping. They are LED lights so very little power is used to illuminate the deck surface.

For a no obligation quote on your sun deck, pool deck, timber balustrades and other timber related outdoor or indoor construction, please contact us on 031 – 762 1795 or use the contact form below.

Wooden Deck in Scottburgh, South Coast KZN

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.

Balau Wooden Deck, Kloof Durban

 

Here’s a straight forward wooden balau deck we built in Kloof, Durban in October 2018. There were a few angles that had to be cut precisely to finish it neatly but other than that the deck was straight forward to build.

We used an H3 and H4 CCA Treated pine substructure. Because the pine is S5 (Industrial SABS approved grade) it is strong enough to be used as a structure for various building purposes. It is also relatively inexpensive in comparison to other hardwoods that could be used as decking structure. Being S5 it contains a certain amount of knots per square metre and is therefore SABS approved as structural timber. Timber with more knots per square metre is normally used as knotty pine ceiling boards where there is very little structural pressures on the timber. Timber with less knots per square metre is referred to as semi clears or S7 grade. S7 becomes quite expensive and is used as deck boards at times to eliminate knots failing on the deck surface. However because one would need to use twice as much wood (38mm thick) when using pine deck boards, the cost is the same as using a 19mm x 68mm balau deck board at half the quantity of wood. As such we use 19 x 68mm yellow balau deck boards as the surface for most of our wooden decks in Durban. The balau is far more stable being twice as dense and hard with a regular straight grain and as such these balau deck boards don’t twist, cup or bow as easily as pine. With the pine being H3 CCA treated it has a life span of at least 50 years outdoors in the rain and weather.

We added a small flight of open riser steps to this deck to gain access to the garden. These are done in full solid balau using 30mm stock. Normally the stringers are 30 x 215 and the treads are made of multiple pieces of 30 x 102 with cleats fixed to the stringers and the treads are fixed to the cleats. They don’t work that well in pine as the pine becomes very visible throughout and one ends up cladding it anyway which brings the cost back to the same as solid balau. The alternative to open risers steps is to do closed risers where box type steps are made of pine structure and then clad resulting in the riser being closed.

The screw holes of all our decks are counter sunk with a Kalgard decking screw and filled with a clear epoxy and saw dust mixture to match the colour of the wood and then ground flat and sanded smooth prior to oiling the deck. You’ll find other articles on this site where we discuss the pros and cons of using oil vs other finishes available on the market and leaving the deck to naturally grey and weather. If you use the search bar at the bottom right and search for maintenance you’ll find a complete article on deck maintenance.

For a free no obligation quote on your wooden deck in Durban and surrounding areas, please use the contact us form below or you can call us on 031 – 762 1795.

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.

Balau wooden screens installed in Umhlanga Durban

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We installed these balau wooden screens in Umhlanga in Durban in early 2018. The brief was to provide some privacy to the upstairs verandah. There was originally a glass balustrade on this verandah and being at the end of a cul-de-sac this property’s verandah was very visible to vehicles and people driving or walking to the end of this cul-de-sac.

We removed the glass balustrade to make way for the wooden balau privacy screens. A balau structure was first installed fixing 40 x 60 vertical posts to the top side of the lower slab and the underside of the top slab to provide a frame on to which we screwed our horizontal balau slats.

When installing screens it is quite common to use different sized slats as we did here. Balau deck boards normally come in two different sizes being 19 x 68mm and 19 x 90mm. 19mm is sufficient thickness for screens and then one can mix the width by using a 68mm board and then a 90mm board. One can also rip a 68mm in half leaving 30mm and use that as well to create a visually appealing screen with differing widths of boards.

Gaps between these boards should ideally be 19mm to allow for wind loading. Obviously the closer the boards the less wind can penetrate the screen thereby increasing the wind loading on the screen. A gap bigger than 19mm results in too large a gap and privacy is sacrificed.

Sufficient vertical supports should be provided for stability and integrity and they should be close enough together so that the boards don’t bow between supports. Balau can normally be spanned about 600mm to 1m between supports to sufficiently pull each board straight to reduce bowing. At times a “strap” can be installed behind the boards to pull them all straight.

It is often a lot cheaper, and just as effective, to use a correctly treated pine structure to fix these boards to. However with a 19mm gap and visibility of the structure as well as visibility from behind, we prefer to use a balau structure. In this instance we used a 40 x 60 balau solid piece from top to bottom which worked well.

These screens can be oiled or left to grey naturally. Either way the life span of the wood is not increased that much be oiling them as balau contains natural toxins which limit insect infestation and oils and resins which repel water and limit rot. If they are to be sealed then an oil is the right way to go. Any other coating that dries on the surface of the wood will eventually peel and flake which will be costly to remove and re-coat.

For a no obligation quote on your timber decking, screens, pergolas etc. please contact us on 031 – 762 1795 or use the contact form below.

Cheap Wooden Deck Builders in Durban

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I was prompted to write this article on cheap wooden deck builders in Durban for various reasons and to highlight some of the dangers of using the cheapest wooden deck builder that you can find. Being South African we all should know the Afrikaans saying “goedkoop is deurkoop”. Or loosely translated to English “you get what you pay for”. There is no exception in the wooden deck building industry.

One should consider that in order to offer a certain level of service a wooden deck builder needs to charge a certain rate. If that rate is relatively low, in comparison to other quotes, then certain sacrifices need to be made either in terms of the quality of materials that are used, the time it takes to do the job to save on labour costs, the quality of labour used to perform the task or the end profit to the contractor. Or a combination of the above. It also makes sense that it will never ONLY be the profit that is sacrificed when rates are lowered. It will be a combination of all of the components, probably skewed away from profit. On the other hand if rates are extremely high the quality of materials and labour can only reach a maximum level (i.e. the best) and any extra money becomes mere profit to the company.

Reliability of contractors using vehicles that may break down should also be taken into account. If margins are small there is often not enough profit to do the maintenance on vehicles, plant or tools that is required and down time can occur that delays the job being completed on time, or at all. Small labour forces may also be used that are often shared amongst several jobs, again resulting in down time and delays in project deadlines. Furthermore unskilled labour forces may be used directly affecting the quality of workmanship and the life span of the end product.

Of equal concern is the tendency of a contractor to use sub standard materials to save on cost wherever possible. In the wooden deck building industry there are various standards of materials. For instance you get red and yellow balau. Red is cheaper but is inferior and will not last as long. Screws can either be Kalgard decking screws with a life span of 25 years or the normal screws one can buy from the hardware with a life span outdoors of approximately 5 years. It is only in 5 years time that you may realise you have made a costly mistake by choosing the cheapest contractor. Or by pushing prices down to a point where a contractor who normally performs a quality job is forced to cut costs and use sub standard materials.

I am often asked to provide a discounted rate. I have no problem offering better rates based on volume as volume enables me to do the job more efficiently. I have done my costings properly and through a combination of accurate calculations and experience have found a point at which I need to set my rates in order to be able to afford quality materials, skilled reliable labour and maintenance of vehicles, plant and tools in order to build a wooden deck the best way it can be built.

We don’t drive the latest Ford Rangers at The Wood Joint. We run a fleet of 4 vehicles ranging from 10-year-old Isuzus with over 400, 000kms on the clock, serviced and maintained regularly so that they are reliable to newer similar vehicles. As such our rates have been set in order to provide the correct materials, skilled reliable labour and reliable vehicles.

I have a list of sub contractors that I can provide you with who will do the job cheaper than me. I can provide a list of suppliers who will supply cheaper materials. I can also show you a list of jobs where third-party sub contractors have taken short cuts in their pursuit of money due to low rates and jobs that have had the wrong materials used and are now prematurely failing.

At The Wood Joint we use only the correct materials, our own permanently employed crews of skilled deck builders each with his own set of tools and reliable vehicles to get them to work on time. We do not, any longer, use third-party subcontractors. We’ve learnt the hard way. Hopefully we can save you the expensive learning process too through this article. We are not the cheapest, we are not the most expensive either, we are correctly priced to offer the standards of quality and service that you expect.

To read more on balau and it’s characteristics please Balau Sundecks

For a free no obligation quote on wooden decking, pergolas, screens, cladding, pergolas and balustrades please call us on 031 – 762 1795 or use the contact us form below.

Wooden Balau Decking Companies in Durban

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Here’s a wooden deck we at The Wood Joint built in Durban recently. The Wood Joint is a wooden decking company situated in Durban and servicing most of KZN. It was a low-level wooden deck basically at ground level joining the pool to the patio and semi surrounds. The site was situated in la Lucia Durban.

When building a wooden deck that will join a verandah to a pool, one needs to be careful to set the height of the pool correctly. The height to the verandah is of course pretty much set based on what the threshold of the sliding doors are. So working from a datum line of the top of the tiles of the verandah one would set the top of the concrete ring beam of the pool down 70mm from the required height of the deck. This will allow for a substructure of 50mm and a deck board thickness of 20mm (19mm in fact but to keep things simple rounded to 20mm). A 50mm batten fixed to the top of the concrete ring beam of the pool will give sufficient space to allow water to evaporate properly, keeping below the deck as dry as possible, and enough structure to create a positive fixing of deck board to bearer. The distance created between top of deck and pool should be minimal. It is not advisable to go much higher than 70mm because it creates a very big “climb” out the pool (from water level to top of deck).

In this deck pictured you will see we ran the deck boards perpendicular to the verandah and pool side. Using this method it is not that important if the side of the pool is parallel to the verandah as the length of the deck boards can be varied quite easily without noticing any difference in length. On the other hand when the deck boards are run parallel to the pool side and verandah one needs to be careful to get the two as perfectly parallel as possible. Any difference will be visible because a deck board will need to be cut in a wedge shape to complete the space. If the difference is not that great then one can “fan” the deck boards to take up the difference in space by making one end’s gaps slightly bigger than the other end. So on one end a 6mm gap can be left and on the other a 4mm gap (normally 5mm throughout). This gains 1mm per deck board run. After 20 deck boards one can adjust for a 20mm difference in spacing. Another “trick” when running boards parallel to the pool side and verandah is to try to end on a full board rather than a half board. Again space between boards can be adjusted either up or down to try to end on a full board. It is much neater and won’t cause as many problems going forward. From the pics you’ll see we ended the deck on a half board which in this case was unavoidable because of the configuration of paving and deck.

You’ll see from the pics that the garden is mostly left for landscaping until after the deck has been built. Trying to build a deck with newly laid grass and not damaging it is near impossible. Always get you building work done before landscaping.

For a free no obligation quote on your decking requirements in Durban please call us on 031 – 762 1795 or use the contact us form below.

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.

Wooden Yellow Balau Deck – Kloof, Durban KZN

Here’s another wooden deck we built in Kloof, Durban which is similar to one we built in Hawaan Forest estate a few years ago. It has a fire pit with a U Shaped bench which double up as steps around it. These steps were designed so that they were wide enough to sit around the fire and with a riser that is not too steep to climb.

The substructure or frame was the normal H3 and H4 CCA Treated S5 pine we use. All our decks are built with an S5, H3 and H4 treated pine substructure. S5 refers to the grade of pine which is commonly called industrial grade. It is graded as such based on the number of knots per square metre. S5 is SABS industrial grade and has been passed by SABS to be used in construction. It doesn’t however make a very good deck board as there are too many knots which are not only unsightly but also they can become dislodged leaving a hole in the deck board. H3 and H4 CCA Treated refers to the hazard classification of the treatment as set out by The Wood Preservers Association of South Africa. Each H classification has a specific application and provided the correct H classified timber is used, the life span of the timber can be many more than 50 years.

The deck boards that went on top of the substructure were 19 x 68mm yellow balau deck boards. The other option for deck boards is 19 x 90mm yellow balau deck boards but they do carry a surcharge as they cost more per square metre than the 68mm wide boards.

There are two types of balau readily available in South Africa. Yellow balau and red balau. Yellow balau is more common and is superior to red balau. What we are seeing in South Africa nowadays which is called red balau is a lot more porous and softer and as such will absorb more water and rot more quickly. We only stock and use yellow balau.

This project in Kloof also included a pergola. What we have found to be most cost effective in pergolas is to use a 90 x 90 square balau post, 30 x 215 balau beam and 30 x 102 balau purlins or trusses at about 600 centres. This spec gives the pergola enough timber to be attractive and serve its purpose whilst still keeping costs down. With this particular job we also installed extra battens on top of the purlins. We used 30 x 40 balau for this purpose which again keeps costs down whilst still providing enough timber to keep it looking good and to do it’s job. Other options for battens on pergolas are to use a 30mm wide strip of balau with a 30mm or 60mm gap between. This provides more shade but of course comes with a higher price tag because more timber is being used.

The timber was sanded and sealed with an oil based sealer we use which doesn’t dry on the surface of the wood so it cannot peel and flake. Unlike other coatings which dry on the surface. These tend to peel and flake.

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

Wooden Balau Pergola Built in Plantations – Durban

This wooden balau pergola was built at Plantations in August 2016. We had custom-made galvanised steel base plates made up in order to secure the uprights to the existing paving. Because the uprights had to be installed on the edge of the paving we couldn’t dig and bury the post so we installed them into these base plates which were then fixed to the paving using sleeve anchors.

When designing a base plate for this application it is important to make the tube that will carry the upright post long enough in order to give it lateral support to stop the structure “racking”. Also the actual base must be big enough to be sturdy, but small enough so as to still be neat and not get in the way. We used a 90 x 90mm balau upright. The back row of uprights were fixed to the outside of the wall surrounding the entertainment area.

On the top we installed 30 x 102 as purlins which were spaced at 600 centres. I’ve found that spacing a 30 x 102 at 600mm centres works best from a structural point of view and a cost point of view. Obviously the closer the purlins are spaced the more expensive the pergola will be and one must be careful not to space them too far apart as it affects the stability of the structure and the visual appearance.

On top of that we installed 30 x 40 balau battens running perpendicular to the purlins at 120mm centres resulting in a gap between battens of 90mm being 3 times that of the batten itself. This works well in order to give enough broken shade without creating a completely closed effect on top. It also helps on the pocket by using 30 x 40 as opposed to 30 x 60mm.

Because of the existing chimney on one side of the area we had to cut purlins beams and battens in order to finish it neatly around this chimney whilst still making sure that all ends were fixed. If the ends are left unsecured they tend to twist over time.

These balau pergolas can be left un-oiled or oiled. If left un-oiled then they will eventually turn a silvery grey colour. If oiled they will remain slightly darker. It is not advisable to coat them with any other product other than an oil as it will eventually peel and flake and maintenance then becomes difficult and expensive. They can be pressure washed to remove dirt and grime that settles over time.

For a quote on your wooden balau pergolas, deck, walkways, balustrades, stairs and other timber works, please contact us on 031 – 762 1795 or use the contact us form below.