This 3.0m (10ft) x 100 x 100mm green/natural post is the most substantial timber post size in the range. It gives the installer both a broad 100mm fixing face and additional overall length for fencing where site levels, height or below-ground requirements exceed what a 2.4m post can comfortably provide.
The 100 x 100mm square section gives a broader fixing face and a more substantial support than a 75mm post. It suits fence runs where a heavier timber post is preferred, including substantial panel fencing and site-built timber boundaries. The larger section is useful when the post needs to provide more fixing area for rails or panels, but it also creates a visibly heavier post line. If the fence is relatively light, compare the 75mm alternatives rather than specifying the larger section by default.
This 3.0m format is the option to consider when the fence layout demands more overall post length than the common 2.4m size. It is particularly useful where changing ground levels, taller construction or deeper fixing requirements need extra timber to work with.
Mark the fence line and post centres before excavation, then check each post for plumb as it is installed. Ground conditions, fence height and exposure all affect how much of the overall length needs to remain below ground. The post mix calculator is useful when estimating setting material for a run, but the hole size and installation method still need to suit the site. If the required post length is not obvious from the planned fence height, use the fence post length calculator before ordering. It is better to select enough overall length at the start than to discover after digging that the post cannot provide both the desired visible height and the necessary below-ground section.
Pressure treatment helps protect the timber against fungal decay, rot and insect attack. The green/natural finish has the characteristic colour of freshly treated fencing timber and works well with similarly treated fence panels and rails. The shade is not a paint finish, so natural variation should be expected and the timber will change in appearance as it weathers. The additional length is useful only when the rest of the fence system is suitable for the job. Check the section size, the weight and wind exposure of the fencing, and the intended post spacing before treating a 3.0m post as a direct substitute for a shorter one. The wooden fence posts range includes 75mm and 100mm sections in 1.8m, 2.4m and 3.0m lengths, so compare the complete combination rather than choosing on length or section alone.
