Ask the Expert: Richard McMullan Answers Frequently Asked Questions About MyDek’s Box Rail Decking Substructure System

BoxRail - Cleat Options by MyDek

The Box Rail substructure system by MyDek makes installing our decking easier, and hence it is one of our most popular products. Designed with a series of innovative features  it can be easily assembled to create a versatile and functional support structure that is perfect  for use on balconies, terraces and other decking areas . In this blog post, Richard McMullan, Head of Technical at MyDek, answers some of the most frequently asked questions about this popular product by MyDek. 

So, if you’re looking to specify decking and searching for a reliable substructure system that is non-combustible and compliant with the latest regulations, read on to learn more about the Box Rail System by MyDek.

What is the Box Rail System by MyDek?

The Box Rail System by MyDek is an A1 fire-rated non-combustible aluminium decking support system designed for decks, terraces and balconies. It is known for its unmatched durability and ease of installation. This product comes with a 30-year warranty and a 60-year design life. 

This system  consists of a series of aluminium bearers and support cleats in different sizes which can be selected based on the required construction depth and can be easily assembled to create a simple and sturdy base structure. This product is compatible with all decking systems offered by MyDek, including Luxura® A1 Fire rated Composite decking, and makes the installation process fast, simple and  versatile.

How does the Box Rail System work?

As mentioned above, different combinations of support cleats and box rails allow for achieving a diverse range of construction heights. Additionally, the joists can be adjusted in 1mmm increments within the cleats to accommodate both height and gradient requirements.

Once it is securely installed by following the instructions, the Box Rail System provides a sturdy and functional system that is able to withstand a significant amount of weight and force.

What are the benefits of the Box Rail System?

One of the main benefits of the Box Rail System is its durability. The aluminium construction can withstand harsh weather conditions and will not rust or corrode over time. This exceptional product comes with a 30-year warranty and a 60-year design life and  has an A1 Fire rating under EN 13501-1 ensuring it exceeds minimum compliance with the latest Building Safety Regulations, providing our customers with the ultimate peace of mind. 

The Box Rail System is also known for its lightweight properties. This reduces weight loading on any underlying roof structures or slabs, enhancing structural integrity.

Is the Box Rail System easy to install?

Yes, the Box Rail System has been designed so that it is easy to install. The rails and cleats are simply connected using self-drilling screws, and the system can be assembled using basic tools and hardware. It is regularly praised by decking installers as their favourite decking supports system as it is so simple and fast to install. Additionally, we also provide our customers with a detailed installation guide along with step-by-step  videos to help with the installation process and additional support along the way. 

Overall, the Box Rail System by MyDek is a durable, easy-to-install support structure system that is perfect for decking modern outdoor living spaces. With its sleek design, long-term durability and versatile build options, the Box Rail System is a popular choice for both refurbishment projects and new developments. 

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For any additional information on the Box Rail System, please check our product brochure or reach out to our team