Woodhouse TerraFrame
Durable, H4-treated timber for low-to-ground and on-ground applications
Woodhouse TerraFrame is a premium range of preservative-treated timber products specifically designed for low-to-ground applications. Treated with Micronised Copper Azole (MCA) to Hazard Class 4 (H4), TerraFrame offers superior protection against termite and fungal decay, making it the ideal choice for customers seeking durable, long-lasting solutions for decking and other outdoor projects.
With a 50-year guarantee against fungal decay and termite attack, TerraFrame provides a reliable foundation for your outdoor structures. The timber is treated to withstand harsh environmental conditions, including moisture exposure, while maintaining its integrity over time. From deck building to subfloor framing, TerraFrame timber is designed to meet the tough demands of the outdoors.
Timber solution that exceeds industry standards
Manufactured from sustainably sourced timber, Woodhouse TerraFrame meets the durability requirements for timber installations near the ground (sub 150mm) and in high-moisture areas. The timber’s H4 treatment ensures it withstands the risk of termites and fungal decay, providing reliable performance for years to come.
Why Choose TerraFrame timber?
Increased durability
TerraFrame is treated to provide superior protection against termites and fungal decay, ensuring long-lasting performance in demanding outdoor environments, backed by a 50-year guarantee.
Various applications
TerraFrame is ideal for a wide range of outdoor projects, including deck subfloor framing, ramps and other low-to-ground structural applications, making it a versatile solution for various construction needs and projects.
Reliable in harsh conditions
Designed to withstand exposure to moisture and environmental stress, TerraFrame ensures the structural integrity of your build over time, even in challenging conditions.
Established reputation & extensive product range
With over 41 years of experience and a wide range of products, Woodhouse offers extensive expertise and variety. We’ve built a strong reputation for quality and service, and with our vast product range, we can meet the needs of any project, large or small.
Product Range & Features
Woodhouse TerraFrame® is a next-generation outdoor structural timber range, treated to H4 with Micronized Copper Azole (MCA) preservative. It’s designed for high-risk in-ground and on-ground applications, perfect for decking subframes and other outdoor projects.
Key features:
Micronized Copper Azole (MCA) treatment
Offers superior protection against rot, fungal decay, and termites, making it ideal for harsh outdoor environments.
H4-treated protection
Designed for high-risk applications, ensuring durability in-ground and on-ground where conventional H3, H2 or untreated timber may fail.
FSC® certified
Sourced from responsibly managed forests, ensuring environmental sustainability.
Kiln-dried and moisture-protected
Treated with a water-based penetrating oil to guard against moisture uptake and enhance longevity.
Graded to MGP10
Ensures the timber meets structural grading requirements, providing reliable performance for your decking and subfloor framing needs.
50-year guarantee
Backed by a 50-year warranty for peace of mind and long-term reliability in a range of outdoor applications.
A trusted name in the Australian timber industry
With over 40 years of experience, Woodhouse is a trusted name in the timber industry, known for quality, service and dependable warranties. Backed by an extensive product range, we support projects of all sizes with proven expertise and long-term reliability.
We proudly supply merchants and retailers with high-quality timber building supplies that support projects of all sizes across residential, commercial, and infrastructure markets.
H4 Timber for various outdoor projects
Designed with builders in mind, TerraFrame® supports a wide variety of outdoor builds, especially where moisture, termites and decay are a concern.
From low-level decks to landscaping and fencing, this tough, treated timber handles the heavy lifting with ease.
Decking and subfloor support
Built to hold up under pressure, TerraFrame® is ideal for framing systems close to ground level, where other options may fail.
Landscaping and garden structures
Whether you’re creating planters, pergolas or retaining walls, this timber delivers lasting strength in damp or high-risk areas.
Fencing and boundary lines
H4 treatment makes TerraFrame® perfect for in-ground fence posts that need to endure exposure to the elements and soil contact.
Structural framing
Use TerraFrame® as a base for small sheds, ramps or exterior structures where reliability is non-negotiable.
Retaining wall framing
Engineered for strength and decay resistance, it’s a smart choice for on-ground retaining applications in both residential and commercial settings.
TerraFrame H4
Woodhouse TerraFrame is a range of advanced outdoor structural timber products treated to H4, specifically designed for in-ground and on-ground applications in harsh conditions.
Thinking about using TerraFrame Timber for your next project?
Our TerraFrame installation guide and span tables contain key information to help you determine if it’s the right product for your project.
They cover the features, installation methods, and suitability of TerraFrame Timber for a range of outdoor applications, providing valuable insights into its performance in different conditions.
TerraFrame
TerraFrame
Building strong foundations starts with Woodhouse TerraFrame timber
Choose TerraFrame for unbeatable durability and peace of mind. Designed to withstand the toughest outdoor conditions, TerraFrame provides exceptional protection against termites, fungal decay, and moisture. Whether you’re building a deck or subfloor framing, TerraFrame is your go-to solution for long-lasting, reliable performance. Trust in the quality that ensures your project stands the test of time.
Why choose Woodhouse timber
40+ years of expertise
With over four decades of experience, we provide TerraFrame timber sourced from responsibly managed radiata pine plantations. Our products are designed for durability and come with genuine warranties, ensuring long-lasting performance for your outdoor projects.
Extensive range of timber options
With over 450 products and counting, we offer a diverse range of timber styles and mouldings that cater to the needs of every application. We also provide flexible delivery options, including product breakdowns for easier storage.
Low prices, high quality
Our TerraFrame Timber products deliver the quality of premium hardwood at a fraction of the price, offering substantial savings without sacrificing style or durability.
People-focused approach
The Woodhouse team is dedicated to assisting you with all your timber needs. If you have questions, need expert advice, or are ready to start your next project, we’re here to help you find the best solution.
Industry-Leading Guarantees & Warranties
All our TerraFrame Timber products come with a 50-year guarantee, offering industry-leading warranties that provide you with peace of mind.
Our Credentials
Backed by decades of experience, TerraFrame timber is produced to meet strict Australian standards for outdoor structural use. Every piece is clearly tagged for traceability, showing treatment level, structural grading and compliance at a glance.
Manufactured to meet the following standards:
- AS/NZS 1604.1:2021 – Preservative-treated wood-based products – Part 1: Products and treatment
- AS 1720.1:2010 – Timber structures – Design methods
- AS/NZS 1748.1:2011 – Timber – Solid – Stress-graded for structural purposes
TerraFrame is treated with Micronized Copper Azole (MCA) to H4 hazard class, suitable for installations exposed to moisture, leaching and termite activity — including low-to-ground and in-ground framing.
Important: The 50-year guarantee against fungal decay and termite attack applies to H4 applications only. Installations classified as H5 or higher are not covered under this warranty.
The greener choice for stronger structures
Woodhouse TerraFrame Timber is made from FSC®-certified Radiata pine, ensuring responsible sourcing. Its VOC-free, low-odour preservative treatment makes it an eco-friendly choice for outdoor use.
Built for durability, TerraFrame reduces the need for frequent replacements, offering long-lasting performance while supporting a more sustainable future.
For durability you can rely on, choose TerraFrame timber
TerraFrame timber is designed for those who value long-term durability. With its extensive treatment process, this timber stands strong against the elements, ensuring your outdoor projects remain sturdy and secure for years to come. When you choose TerraFrame, you choose a solution built to last and perform under the most demanding conditions.