Substructure
Extruded Aluminium Box Rail
This extruded 6063 T6 aluminium rail has been designed and developed by Wallbarn for construction of heavy duty paving or decking applications. These profiled rails are designed to connect seamlessly to our Mega Balance, Joist Holder & MetalPad Ex pedestals.
Initially developed as a low-height substitute for timber and composite joist/rails, it is now a standard choice for fire rated substructure systems. It is extremely strong, lightweight and simple to install.
Key Advantages
- Class A 1 rated (EN 13501-1:2018), fully compliant with BS 8579 and Approved Document B
- Outer ledges on profile click onto Mega Balance securely and seamlessly
- Secured to MetalPad Ex by hand with Wing Nut Kit
- Ultra Low Height threshold with Joist Holder
- Lightweight, easy and safe to handle
- Will not rust, warp or rot. Ideal for external applications
- Ample surface area for secure fixing
- Paving headpiece or hidden decking fixing clip designed to fit rail perfectly
- Available in 15mm, 20mm & 25mm High (2.5 metre length as standard)
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Paving / Tiling Application
- Helps achieve integrated Class A for porcelain tiles and paving slabs.
- Wallbarn’s Aluminium Box Rail mechanically fix to Metalpad-Ex pedestals for non-combustible paving systems, as well as our extensive plastic pedestal range.
- Gives greater support to slabs and tiles providing additional lateral strength across the deck. Official test report
- Faster installation of suspended paving and tiling projects.
- Joists fit together quickly and easily using Wallbarn’s tailored brackets.
- The Paving Headpiece is specifically designed to integrate with Wallbarn aluminium rails, attaching directly onto the rail’s profile without requiring mechanical fixings. It can be easily slid along the rail to be positioned precisely where needed.
- When used in combination with our Class A Joist Holders, you can achieve a substructure height threshold as low as 17mm.
If you have any questions, get in touch.
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Rail deflection - maximum span between pedestals
Rail height | Maximum distance between pedestals | Recommended maximum distance |
---|---|---|
15mm | 600mm | 500mm |
20mm | 800mm | 625mm |
25mm | 1000mm | 625mm |
50mm | 600mm | 600mm |
75mm | 1200mm | 1200mm |
100mm | 2200mm | 1800mm |
Decking Applications
- Helps achieve integrated Class A for decking – We recommend Exadeck Porcelain Decking or one of our Fibre Cement Deck Boards.
- Wallbarn’s Box Rail is compatible with, Joist Holder, Class A Fixed Height & Metalpad-Ex pedestals.
- Gives greater support to slabs and tiles providing additional lateral strength across the deck.
- The installation of a suspended decking system is expedited through the use of lightweight components that are easy to maneuver around site
- Joists fit together quickly and easily using Wallbarn’s tailored brackets.
If you have any questions, get in touch.
Connections
There are a range of brackets designed for use with our aluminium Box Rail. These options include:
- M8 Wing Nut Kit – Used to secure the aluminium Box Rail to the MetalPad Ex Pedestal.
- Steel Straight and Right Angle Brackets – Used to secure the aluminium Box Rail where they meet end to end or at right angles to each other.
- Class A Decking Clip – Suitable for most central milled decking boards including Exadeck Porcelain Decking & our Fibre Cement Decking options.
- Class A Rail to Rail Headpiece – This headpiece allows stacking of Wallbarn’s aluminium rails/joists on top and perpendicular to each other. This can be used to help work with difficult sub floors that have varying height levels or to create large height thresholds.