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    Riser Voids

    Our patented, steel-supported GRP (Glass Reinforced Polymer) Riser flooring system will help you take the hassle out of Risers and is designed for all construction stages and methods. Known as the d² Dura Riser System, it eliminates the risk of falling from height because the void is covered at the exact moment of installation, and services can be cut in situ without the need for costly removal of cover plates or adjustment to the support.

    Eliminates the risk of falling from height.

    Our bespoke first-class safety, riser solutions on new builds or refurbishments together with our highly experienced team offer a tried and tested one-stop-shop for Riser safety – including design, material supply & install. Using the d² Dura Riser system, services can be cut in situ without the need for costly removal of cover plates or adjustment to the supports.

    As well as offering the most comprehensive patented product range on the market, we pledge to do the necessary preparation to ensure that your riser project price avoids unwanted and unplanned extra costs for variations and hindrances thanks largely to our experienced and effective Site Supervisors, supported by our own PAYE staff for assured project delivery and continuity.

    Unlike competitor solutions, there is no need to cut service holes ahead of time or to crane heavy framework into position, and the system is infinitely adjustable to allow for millimetre by millimetre changes. All components of the Dura Riser solution are also suited to manual handling and can be easily adapted for use with unusual substrates.

    How we work with you to define the best approach to your Riser Voids

    Riser_Install Supports

    Void Status

    ​​Q: Will the risers be installed before or after the void is formed?

    This will determine whether you need our pre-formed or post-fixed solution.
    Riser_Cut Out Support


    ​​Q: Will there be service cut outs required?

    You can choose from pure safety flooring or a fully coordinated solution.

    Platform Height

    ​​Q: What is the preferred finished height of flooring?​

    We can work to either solid slab level (SSL) or finished floor level (FFL).
    Heavy Duty


    ​​Q: What are the load and deflection requirements?

    Does your project require Point Load or UDL and to what deflection?
    Riser_Install Grating

    Grating Type

    ​​​Q: How much activity will there be under the riser flooring?

    The activity type will determine if you need Solid, Mini or Standard grating to adhere to standards.

    Process Options

    ​Q: Will the materials be put together off-site?

    We offer supply-only or a full contract installation service using our PAYE staff for continuity.

    Assembly Methods

    ​Q: Will the materials be cut or drilled off-site?

    If you’re working to modular construction methods we can supply pre-fabricated or pre-cut for you.


    No risk of cutting supports, fire-rated, small mesh holes and anti-slip

    As the safest solution on the market, unlike competitor GRP framework solutions, there’s no risk that our supports can be accidentally cut during the fitting of services, causing the riser to fail. The d² Dura Grating products used to cover the voids have been rigorously tested anti-slip surfaces and a market leading EN13501 Class B fire rating to increase accessibility and safety.

    The small mesh hole sizes throughout the range prevent objects falling through and causing injury below. If your project requires a 50mm grating for example, d² Dura Grating is the only 50mm Standard Mesh grating on the market that meets the BS 4592 35mm Ball Fall test. Our 45mm and 55mm Mini Mesh are also the only products that achieve 20mm ball fall test compliance whilst catering for wider spans.


    Purpose-designed for Risers, to exactly the criteria we know you need

    Our lighter patented GRP grating designs use less raw material, without compromising performance. This means that lighter or smaller products can be used to reduce your project scale. For example, because it’s up to 33% lighter than other GRP grating, d² Dura Grating is safer to transport, install and lift than other products on the market.

    We’re so confident in our ratios, we make our material science knowledge freely available via an online tool we call ‘Power of Composites’ so you can see how our products perform based on fact, not guesswork. Find out more


    33% less embodied carbon AND we’ll recycle it for you

    We’re the only partner you’ll find who can genuinely offer a sustainable solution. We design our products with the environment in mind, making clever design and engineering choices that remove carbon without compromising performance.

    Not only do our GRP grating products have up to 33%  less embodied carbon than others, but we’ll recycle your product once it’s end-of-life and repurpose any waste products you produce during installation.


    We’ll reduce your build costs and deliver a measurable impact on sustainability

    Building lighter and smarter with less material is a proven way of saving money and reducing embodied carbon. Our d² Dura Grating already results in a 33% embodied carbon efficiency saving – even before you’ve considered all the other ways in which our efficient panel yields, cutting, upcycling, recycling and 60-year design life help contribute towards your sustainability and project cost-efficiency goals.

    We can also easily calculate the amount of carbon you’ve saved by choosing d2 Dura Grating versus the grating that’s available elsewhere using our carbon calculator tool. We can even do it for your project before we get started as part of the quotation or tender process. Simply contact us to obtain your bespoke project calculation

    Free CPD events

    If you’re a principal contractor, our CPD can help you identify and mitigate potential risks in your projects, particularly for high-rise constructions. If you’re a designer or engineer, we can help you gain knowledge on how best to design safe and durable walkways, access structures and other structural items using the most sustainable GRP and composite product range in the industry.

    Read more

    Preserve your 2-hour burn time with the

    d² Dura Riser Fire ConnXtion

    If the fire strategy in your risers make install a challenge, we have a high-performance solution that will make for a secure install and preserve your fire protection. We’ve developed a way to connect our system through firewalls, and can work with your fire stop designers to provide an interface to secure our system within your existing strategy. Want to know more? Simply fill out the form and we’ll get in touch.

    Let’s get started


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