10 September, 2025
Written by Ursula Bhatia

NewTechWood’s Shadowline & Castellation Cladding Awarded CodeMark certification CM40405

Nationally recognised compliance, faster approvals, and clearer specifications for Shadowline and Castellation cladding.

NewTechWood’s Shadowline and Castellation cladding ranges have been awarded CodeMark® certification (CM40405), providing architects, designers and builders with nationally recognised evidence of NCC compliance and a faster approvals pathway. This third-party verification simplifies consent and strengthens specification confidence for façade projects.

What CodeMark® means for your projects

The CodeMark® scheme, administered by the Australian Building Codes Board (ABCB), is regarded as the industry’s highest level of product certification. Unlike individual test reports, a CodeMark Certificate of Conformity provides nationally recognised evidence of suitability, giving confidence to all stakeholders involved in the building process.

For specifiers and project teams, this translates to:

Verified compliance under the NCC: reassurance that Shadowline and Castellation cladding meet nominated performance requirements when installed within the certified scope.
Streamlined approvals: building surveyors and certifiers can rely on the certificate directly, reducing bottlenecks in consent and inspections.
Support for Performance Solutions: CodeMark certification can be incorporated into documentation, reducing duplicated work and strengthening compliance pathways.
Clarity for everyone on site with scope, conditions, and limitations clearly outlined, there’s less ambiguity and fewer project delays.

The result: fewer grey areas, smoother signoffs, and greater confidence in compliance.

Certified cladding ranges

Shadowline (US31 & US31SS): A refined weatherboard-style profile with crisp shadow gaps, offering a modern linear look ideal for façades, feature walls, and ceilings.
Castellation (UH61, UH58 & UH93): A bold vertical batten system that creates depth and architectural rhythm, suitable for façades, screens, and soffits.

Both systems are fully capped composites, engineered for durability, UV resistance, and low maintenance in demanding Australian conditions, giving you design flexibility without compromising on long-term performance.

How to specify with confidence

Specifying CodeMark-certified products is straightforward. Simply reference Certificate of Conformity CM40405 in your project documentation as evidence of suitability. Always ensure the proposed application matches the certified scope, including substrate, location, fixings, and limitations.

Sample specification reference:

Product: NewTechWood Shadowline / Castellation composite cladding.
Evidence of suitability: CodeMark CofC CM40405 (current at date of contract).
Application: Within CofC scope, conditions, and limitations; reference CofC in drawings/spec.
Installation: To the NewTechWood Installation Guide (latest), including fixings, ventilation, and clearances.
Verification: Attach CM40405 PDF in the submissions package

Resources and support

At NewTechWood, we understand that every project is unique. To make specifications easier, we provide:

Technical data sheets, detailing packs, and installation guides to support accurate documentation.
Architectural support services to help align your design intent with the certified scope and recommend best practice details tailored to climate, exposure, and build type.

All resources and certificate downloads are available at newtechwood.com.au.

Building compliance into design

With cladding compliance under increasing scrutiny across Australia, the demand for products backed by robust certification has never been higher. By achieving CodeMark certification, NewTechWood gives architects and designers the assurance they need to specify with confidence without compromising on creativity or performance.

When you’re ready to build something beautiful by design, strong by nature, and effortless to enjoy, choose NewTechWood and Build with the Benchmark. To find out more, contact us today.

Frequently Asked Questions

Does a NewTechWood composite deck cost more than a timber deck?

In the short term, it does. However, when you compare the maintenance, material, time and labour cost on traditional timber decks every year the costs really add up. In less than three years, you will be able to see all the time and money you would have saved by using NewTechWood composite timber.

How much does NewTechWood cost?

We are the wholesale importers and thus we only supply the stores that sell NewTechWood and are unable to provide pricing because we don’t sell direct to the public. You can find the stores who do sell NewTechWood on our website here: or you can submit an enquiry through our website, and we will make sure to connect you with the nearest NewTechWood reseller to get an exact quote for you.

Where is NewTechWood made?

NewTechWood is an American family-owned company, which began in Houston, Texas. They then built their own, quality controlled, manufacturing plant in China. The American owners now manage the complete manufacturing process on site. (Manufacturing in China enables them to provide top quality products at an affordable price.)

Where can I buy NewTechWood or get samples?

What state are you in? Please send us your postcode and we will advise the closest reseller store to go, see display, get free samples and quote for your deck. Otherwise, you can find where the stores are listed on our Store Locator page. They all carry samples as well. Some have large displays, and some do not – you can give them a call.

Do you install?

We’re wholesalers and we don’t do the installation. However, we have a list of recommended installers on our website and you can find comprehensive Installation Guides on our website.

Does NewTechWood cladding meet Australian building standards?

Whether or not any building product meets an Australian building standard depends on the application and the class of building on which it is being installed. For this reason, it is best to consult your architect, or Planning Officer at your local authority, for the particular standard(s) you need to meet. This will determine how it is to be constructed/used to ensure it meets the required Standard(s).

What fire rating/energy efficiency rating does the NewTechWood Cladding have?

BAL Fire ratings and energy efficiency ratings are not absolute values specific to a particular product, but apply to the way in which the product is installed, or the system of building in which the product is an element.

NewTechWood Cladding does not have a BAL bushfire rating. Refer to your building engineer as you may not require a BAL rating, and may be able to be used with an engineered, fire-rated system in place. Refer to the Materials Safety Data Sheet downloadable here:

https://newtechwood.com.au/technical-information/

Does NewTechWood contract and expand?

NewTechWood, like all wood plastic composite products, will expand in hotter ambient temperatures and contract in the cooler temperatures. The degree of expansion will largely depend on the type and ratio of timber & plastics used.

NewTechWood profiles will expand around 1.1mm per metre from a 15°C to high ambients.

Our hidden fix systems allow for this natural expansion & contraction to occur without affecting board creep or the design of the deck.

When installed properly, taking into account the ambient temperature at the time of installation and leaving a sufficient but not excessive gap, the spacings between the boards should always be negligible.

Are You Ready To Start Your Project?