Benefits and Uses of Treated Timber

Before it can be used in a construction project, timber tends to go through a range of processes. These are designed to improve the material in a range of ways. Thorough drying, for example, will limit warping. When timber is sawn to standard lengths, moreover, it becomes easier to work with.

‘Treated timber’ is the sort that comes with a slightly greenish hue. It’s been injected with pressurised chemicals, which are designed to ward away all of the harmful insects, bacteria, and fungi which contribute to the decay of timber over time. 

So, why is this important? There are several factors to consider. Let’s look at a few of the more important ones.


Treated timber will tend to be much more resilient than the standard sort. It won’t rot to the same degree, and it can cope with repeated cycles of rain, sleet, and frost. As such, timber of this sort tends to be preferred in outdoor settings, like raised patios. You’ll find that it’s widely available in a range of pre-cut forms.


Because treated timber will last much longer, you’ll have to spend less money on replacements. This leads to considerable savings in the long term. Of course, you should still look to source quality timber from a reputable supplier – but penny-pinching becomes less worthwhile. To keep costs even lower, you might look to buy your materials in larger quantities, too.


Environmental friendliness

You might suppose that the addition of chemical treatments would make a building material more toxic, and not less. But the fact that treated timber lasts longer makes it beneficial to the environment, compared to untreated timber. Among the materials used in the treatment process is copper, which can be recycled almost endlessly, and used everywhere from electronics to cookware.

The only downside here is that the dust created by sawing through this kind of timber can be hazardous. As such, the material should be worked with only in a well-ventilated, outdoor area – and with the help of facemasks and other protective equipment.


If you’re building a project for a client who doesn’t want to have to worry about aftercare and maintenance, then treated timber is an obvious choice. For the same reason, this makes this kind of timber attractive to DIYers.

Added Safety

If you’re looking for a fire-retardant building material, then you’ll find it in the right kind of pressure-treated timber. One of the biggest disadvantages of timber as a construction material is the ease with which a blaze can spread along it. Since treated timber doesn’t burn as easily, it’ll buy you the time you need to escape – provided, naturally, that other fire-safety precautions have been taken.



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