If you are getting ready to build timber fencing in Brisbane, it may be helpful to check out the recommended practices for timber fences from Timber Queensland. But who are Timber Queensland?
Timber Queensland is a trade organisation for the timber industry in Queensland. They are basically the voice of the timber industry in Queensland. They have existed in various forms since 1938 and are a non-profit organisation. Their members include: timber retailers such as Narangba Timbers, harvesters, plantation growers, sawmillers, builders, architects and manufacturers.
Timber Queensland represents the timber industry to consumers, government industries, timber traders and consumers. They have helped the timber industry become self-sufficient and self-policing, ensuring that timber is harvested, delivered and sold using best practices. They have spent a lot of time, money and energy educating the public to the benefits of timber products and how forests affect the larger ecosystem.
They also remain at the forefront of innovation and technology, ensuring that the public receives the best possible products. Their recommended practices sheet is an effort to standardise and elevate the quality of timber fencing in Brisbane and throughout Queensland.
Timber fences can be effective barriers and used to define property lines, protect homeowners from sun and wind, keep pets in the garden, reduce traffic noise, provide privacy from neighbours and passers-by on the street and provide a safety barrier around hazards such as swimming pools. Recommendations on the recommended practices sheet are for fences up to 1800 mm high.
Many councils have their own sets of rules regarding fences, especially if you have a swimming pool. Always make sure you know your council’s regulations or restrictions and adhere to them. You should also make sure that you have consulted your neighbours and come to an agreement concerning any boundary fence because you are both responsible of the cost and the maintenance. All boundary fencing should be properly surveyed and aligned before building the fence.
Currently, there is no Australian Standard that pertains to timber fencing. Since timber fencing is not being used to main the structural integrity of a weight-bearing structure such as a house or a deck, features such as knots, minor insect damage, gun veins and wane may be present. Often, twisting or cupping may occur. For most fences, this is acceptable.
When building a fence that requires a higher standard of performance or appearance, be sure to specify a higher grade of timber. Timber that is graded for structural integrity, such as hardwood F11, Cypress F5, MGP10 or treated pine F5, can be used for railings and posts. The palings could have the following specifications: no decay or insect galleries, no loose or unsound knots, resin, latex or gum pockets not to encompass two or more surfaces, no heart or pith and sound knots that don’t exceed half of the face width.
A fence should give many years of service to a homeowner. To this end, the following species of timber are recommended.
Cypress with the sapwood not to exceed 20% of a cross section or 33% of the width on faces that are connected.
Hardwood: Posts must have an in-ground durability class of 1 or 2. Palings and rails must have an above-ground durability class of 1 or 2.
Preservative treated pine.
Any pine or hardwood species that have sapwood must be treated with a preservative. Posts and/or plinth boards should be treated to a minimum H4 hazard level. Cappings, rails, palings and other components should be treated to at least H3.
For fences up to 1200mm, posts should be planted at least 450mm into the ground. For fences between 1200mm and 1800mm, posts should be planted at least 600mm into the ground. A minimum diameter of 300mm is recommended for post holes.
Beyond the Basics
There is obviously a lot more to building a timber fence, but we hope these basics get you started on a sound basis. Our customer service staff can tell you the rest.
For more information, contact Narangba Timbers today: (07) 3888 1293.