Pentarch Forestry™ Structural F5 and MGP framing products

Building the future: Pentarch Forestry's Oberon Mill - your source for quality treated and untreated structural framing products.

Structural F5 and MGP framing products

Pentarch Forestry’s Oberon Mill supplies a range of Treated and Untreated structural framing products, each is clearly stamped to indicate timber grade AS1604.1.

Only timber which is kiln-dried, accurately gauged and machine stress graded to ensure dimensionally stable and structurally reliable earns this stamp.

A key Pentarch Forestry™ policy is to only source timber from sustainably managed forests.

It means that only timber products which are both Responsible Wood (RW/1-31-217) and PEFC (PEFC/21-31-217) Chain of Custody certified (AS 4707-2021) are used at our mills.

It gives us and our customers peace of mind that our timber meets strict environmental controls.

Our policy is to source timber from sustainably managed forests only.

Wooden structures south of the tropic of Capricorn are prone to termite infestation and to mitigate this threat, Pentarch Forestry™ offers structural framing products treated with Blue H2-F.

When used in combination with ground-level termite protection, Blue H2-F framing provides a highly effective and long-term protection against termites.

Koppers Chemicals, which manufactures Blue H2-F, provides a 25-year warranty against termites for timber treated with the product, easily identified by the blue dye used in the treatment process.

This provides protected and durable structural timber suitable for above-ground, dry, protected building applications (not subject to weather or dampness) such as wall-frames, trusses, and subfloor construction.

Blue H2-F is applied to the pine framing at our state-of-the-art on-site timber treatment facility, a process which has been thoroughly tested in Australian conditions and is approved under the Australian Standards.

This product range is supplied in:

End Sections

  • 70mm x 35mm
  • 70mm x 45mm
  • 90mm x 35mm
  • 90mm x 45mm

Structural Grades

  • F5
  • MGP10
  • MGP12
  • MGP15


  • 2.4m – 6.0m (increments of 300mm)

Architect Information

If you require any assistance with project specifying, samples or detailed information to suit your project, please contact our architectural team below.

National Free Call
1800 818 317

We also offer free Product Training Sessions. 
Ask the team for more information.

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