Frequently Asked QuestionsSee below for important information to consider before specifying or purchasing steel poles
How long will galvanised poles last?
Our steel poles are Hot Dip Galvanised to AS/NZS 4680 providing one of the most durable and maintenance free coatings available. The Galvanising Association of Australia provides estimated coating life of between 20 and 100 years depending on the corrosive environment. GM Poles warrants that our poles, if used for the purpose intended and installed in accordance with our standard procedures, will continue to perform satisfactorily for a minimum of 10 years under normal operating conditions. Hydraulic, electric and moving parts are guaranteed for a minimum period of 12 months from date of delivery. These time frames will be reduced for extremely corrosive environments (such as locations experiencing salt water spray) depending on severity.
What painting system would suit my project?
For an architectural finish, GM Poles offers a range of paint and powder coated finishes. We are happy to discuss project specific paint systems with you, alternatively we offer the following standard finishes:
- Dual-coat powder system provides good durability in most environments and is guaranteed for adhesion and colour in non-coastal ans non-industrial locations for 2 years
- Triple-coat powder system provides very good durability in most environments and is guaranteed for adhesion and colour in non-coastal and non-industrial locations for 5 years
- Standard colour, dual-coat marine paint system provides very good durability in most environments and is guaranteed for adhesion & colour in coastal locations for 7 years
- Metallic colour, triple-coat marine paint system provides very good durability in most environments and is guaranteed for adhesion and colour in coastal & industrial locations for 7 years
What do I need to install a pole?
Normally installation of poles requires a licensed builder for the footings and a rigger or dogman for the pole erection. It is critical that the person performing the work understands the risks involved. Contact us for installation advice or a quote.
What certification do councils require?
The following certification is typically required by councils for poles over 10m high:
- Design certification for footings
- Inspection certification for footings
- Design certification for pole
- Inspection certification for pole
Check with your local council to see what building and/or planning approvals may be required for your proposed installation. They will also be able to advise you on what engineering certification and inspections are required.
What criteria is used to design poles?
Poles are designed to suit the location specific wind conditions as specified in the Building Code of Australia and the Australian Wind Code (AS/NZS 1170.2:2011). The most important criteria are:
- Importance Level: this addresses the consequence of failure of a structure, having regard for economic loss and/or loss of life.
- Wind Region, e.g. cyclonic, non-cyclonic: Australia is divided into four key regions, namely A, B, C & D.
- Terrain: structures and vegetation in the immediate vicinity (typically up to 2km radius) of the project location need to be considered when calculating the wind loading on a structure.
- Topography: the local topography (i.e. steep slopes, cliffs, etc.) can have a significant impact on the wind loading of a structure.
It is important that all criteria is considered by trained Sales staff to ensure that the structures can be certified by an engineer. GM Poles provides complimentary engineering certification for every product that we sell.