This wooden pergola was built in the common public area of Cotswold Downs in Hillcrest. The original one had been damaged due to high winds. It was built using H3 CCA Treated pine. Being H3 CCA treated it has a minimum life span outdoors, in the weather, of 50 years. See here for an article on the correct treatment of pine.
We built concrete bases with galvanised steel drag plates set in the concrete. The ground had a slight fall to it so each plinth was set and cast level with each other. The timber sits out the concrete fixed to the drag plates. This should limit the premature rot of the timber and resulted in H3 being used as opposed to H4.
We finished this one with a mineral based Rystix in Imbuia (black) at the client’s request.
For a free no obligation quote on your pergola, wooden sun decks, stairs and balustrades please contact me Garrick Dunstan on 082 496 5444 or use the contact us form below.
The Wood Joint 