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.

Wooden Pergolas

Wooden Decks Durban and Cape Town

Deck and pergola

A wooden pergola is a structure above that is designed using timber beams, purlins and slats. It is largely decorative as it does not prevent rain and provides limited shade depending on how many slats are installed.

They are sometimes referred to as Sun Screens and can be built in such a way as to offer shade at certain times of the day by adding more or less slats to the top. There are a multitude of designs and they are only limited by ones imagination, and of course budget.

They can be attached to the main building and then supported by posts on the front edge or they can be free-standing with posts to ground. One can install roof sheeting above to keep the rain out, but often it is better to consider an aluminium awning for this application due to cost. A balau pergola is not the cheapest method, but does add a nice appealing underside to your covering.

Wooden pergolas can also be installed using thatching laths to give them a more rustic look and feel.

Should you require a quote on a pergola or any other timber construction for your home, please call us on 031 – 762 1795 or use the form below.