Responsibly sourced timber is timber sourced from sustainable and environmentally responsible resources.

Porta’s Tasmanian timber is grown sustainably. As a sustainably managed timber, this means that the trees regenerate (grow back) after harvesting. It is also processed to the highest standard and backed by Australia’s leading timber experts.

Responsibly sourced timber delivers several benefits to your project.

Tackling climate change

Embodied carbon emissions in the Australian construction sector account for over 23 per cent of all carbon emissions. To effectively tackle climate change, we need to remove CO2 from the atmosphere as well as reduce carbon emissions.

Timber stores carbon and has a much lower embodied energy than other major building materials, which are non-renewable and require large amounts of fossil fuels to produce.*

Carbon storage

To produce 1kg of timber, a tree consumes 1.47kg of CO2 and returns just over a kilo of oxygen into the atmosphere. When trees are harvested for use in timber construction or products, the carbon remains stored in the timber for the life of the product (about 50 per cent of the dry weight of timber is carbon).

It is preferable to have the carbon stored in trees and in timber products than in the atmosphere, where it contributes to climate change.*

Good for health and wellbeing

The use of timber in the interior of a building or home has clear physiological and psychological benefits that mimic the effect of spending time in natural surroundings. The feelings of natural warmth and comfort that timber elicits in people have the effect of lowering blood pressure and heart rates, reducing stress and anxiety, and increasing positive social interactions.*

Click here to read more about the benefits of using Porta timber in your home.

Where does timber come from?

There are two sources of timber:

1. Old growth timber: This timber is over 250 years old. Porta does not use old growth timber.

2. Regrowth timber: This timber is grown in defined forest areas and on average, is 40-60 years old. Each log is clearly identified with a log docket and on an invoice, and Forest Management Plans are in place.

Public production forests

Forest map

Tasmanian Oak is grown in the southern and central highlands of Tasmania. The forests are managed by Sustainable Timber Tasmania (STT), a Tasmanian Government Business Enterprise responsible under state legislation for:

Sustainably managing approximately 812,000 hectares of public production forest (Permanent Timber Production Zone land);
Undertaking forest operations for the production and sale of forest products from these forests.

The Tasmanian forestry map (above) shows the areas of Tasmania allocated to conservation areas, public production forests, plantation forestry, and agriculture, cities, towns, waterways, housing, etc. Porta’s Tasmanian timber comes from public production forests.

Chain of Custody

Committed to sourcing timber from sustainable resources, Porta holds Chain of Custody under internationally recognised and accredited organisations including the Forest Stewardship Council (FSC) and the Programme for the Endorsement of Forest Certification (PEFC).

Chain of Custody refers to all the steps in the process – from the timber grown in our forests through to the manufacturing process, distribution channels, and the end consumer.

For a product (or project) to be labelled as being made from certified timber, an unbroken chain is required.

Certification allows us to:

Track timber products from sourced forest through to the end product.
Assure customer or end user that the product purchased is responsibly sourced and not obtained illegally or unethically.
Identify forest products that are legally sourced.
Structure forest management systems, encompassing economic, environmental, and social values and outcomes.
Manage Chain of Custody certification through regular audits and careful monitoring of all paperwork for timber products.

Why Chain of Custody is important

As consumers, we are becoming more aware of the global decline in forest areas, the negative impact of unsustainable practices and illegal forest products. Chain of Custody enables you to make informed decisions about where you purchase your timber products from, thereby ensuring that your timber products come from sustainable and environmentally responsible sources.

*Source: Make It Wood

Architecture & Design Team

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