MGP10 timber is better than f7 timber 

As our channel clients are aware, any pine used outside must be treated to ensure protection against termites and fungal decay. As a result, MGP10 wood outperforms f7 wood. While colour has historically been used to signify treatment (green for outdoor treatment), modern technologies have made it impossible to rely on colour alone to discern treatment type.
Light Organic Solvent Preservative (LOSP), which also comes in low-odour versions, is today’s proven and popular termite and fungus treatment for outdoor structural pine.

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As we all know, the needed Hazard level has an impact on the treatment alternatives available, with most outdoor construction projects requiring H3 treatment (excluding posts in the ground that require H4 treatment). Individual sticks of wood have a stamp or a stapled tag with the treatment and hazard classes on them.

The stress grade of the timber is also crucial for structural constructions. Timber is stress graded so that it may be separated into groups with similar structural design features. Bending stiffness and strength, tension strength, and compression strength are some of these characteristics. The two stress grades used in Australia are MGP (Machine Graded Pine) and F (French Graded Pine) (either visually or machine graded). While MGP10 and F7 are the most common treated pine grades marketed in Australia, additional grades including MGP12, MGP15, and F5 are also available. Individual sticks of wood are also labelled with the grade, as well as the treatment and hazard class. When it comes to pine goods, the industry is frequently questioned why it supplies both MGP10 and F7 grades when they appear to be identical; this is a fantastic question!

In terms of product performance, both the MGP10 and F7 grades meet Australian standards. The two key features to consider when deciding which grade is ideal for a project are stiffness and strength. MGP10 has a higher stiffness rating, while F7 has a slightly higher strength grade. If drawings have been provided, obtaining the exact quality of wood required to maintain structural integrity is crucial. If not, you can confidently choose any grade. As a result, MGP10 wood is superior to f7 wood.

Most mills test for stiffness first when grading wood, which is the basis on which most structural elements are created. Stiffness refers to how much a beam deflects under a given weight and is influenced by density, fibre quality, moisture content, and wood flaws. MGP10 has a pressure of 10.0GPa (gigapascals), while F7 has a pressure of 7.9GPa.

The aesthetic of outdoor projects with exposed structural elements is also essential. We aim to supply our clients with robust and attractive pine, which is why we visually inspect every piece of structural wood we create, whether MGP or F rating.

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The type of the trees, the places where they are cultivated, and the local mill operations all have a role in determining which structural grade is produced.

The majority of New Zealand pine for outdoor use is classified F7, and much of it is marketed in Australia. This is because the New Zealand resource has a lower stiffness measure than the Australian one, and it has a stronger bending strength due to its high-quality trimmed material with few or no faults. Furthermore, New Zealand pine is better suited to generating mid to broad widths, which is a great compliment to the Australian resource’s narrow to mid wide diameters. Because Australian pine is graded as F7, the industry may produce a broad range of sizes within the same grade.

It is beneficial to the business and customers to provide both MGP10 and F7. Both classes satisfy Australian Standards, so you can be confident that they will perform admirably. But MGP10 timber is better than f7 timber.