When purchasing treated poles from us here at Poles Galore, you can rest assured that all of our timber has been prepared according to the South African National Standards specification. This specification of timber standards ensures that a minimum standard is met and also provides a guide for end-user application. The guide is specified through a Hazzard (H) Classification symbol located on the actual timber.
A Simple Guide to the Hazard Class Symbols of Treated Timber:
Each pole/treated timber piece will be tagged with a code beginning with “H” and followed by a numeral digit, below is a list of the Hazard Classes with a match to their end use applications.
- H2 – This timber is suitable for internal use, such as roof rafters.
- H3 – This timber can be used externally, but only above ground.
- H4 – This timber is suitable for in-ground applications, such as fencing poles.
- H5 – This timber is suitable for use in freshwater / wet soils, such as bridges.
- H6 – This timber is suitable for use in salt water and can be used in applications such as pier constructions.
Behind each of these class symbols is a process of scientific treatment that is used to get the desired Hazard Classes out of each timber product.
When purchasing timber, it is preferable that you purchase treated timber, such as the timber supplied by Poles Galore. Ideally, you would also want to purchase timber that has already been cut to your desired size. There is a risk that if you cut the timber and do not treat the now exposed end, your timber may not last anywhere as long as it should have.
Always ensure that when cutting your own timber, you have purchased a suitable remedial wood preservative to treat the now exposed surface with. A professional tip is to also make sure that the newly exposed end of the timber is not the end that is planted into the ground (even after treating it at home), you should much rather use the end that has been professionally treated by our timber specialists.
A few tips to planting poles:
- Do not enclose the planted end of a post in concrete, doing this would make certain that any water trapped in this enclosure would never be able to escape. This would, in turn, cause the poles to absorb moisture and weaken their integrity.
- If you really have to concrete the poles into the ground to keep them stable, ensure that the concrete is only located on the sides of the pole to allow for easy water drainage.
- If you need to plant the pole into the ground, but perhaps have an issue with soft soil that is causing the poles to sink down, a layer of concrete can be filled into the hole and left to set. Once the concrete has set, you can install the treated pole and fill soil in to hold it in place.
Have any questions? Be sure to call Poles Galore! Our team of dedicated timber experts are sure to have the answer to your questions.