What are the DuoSpan 99 Straight Connectors made from? The DuoSpan 99 Straight Connectors are made from tough aluminium for strength and durability. The compatible hex-head screws are made from strong stainless steel and coated in a cathodic barrier. This is to prevent any erosion between the two different metals meeting. What's the difference between DuoSpan 51 and DuoSpan 99? Although each one constructs a comprehensive subframe decking system, the two differing numbers refer to the best locations each frame will perform and the relevant weights they can hold. DuoSpan 99 is suitable for use over soft substrates, where the Plas-Pro can be driven into the ground or concreted over. DuoSpan 51 is better suited for roof terraces and ground-level terraces. To understand which DuoSpan option is suitable for your exterior structure, please speak to the team. How are DuoSpan 99 fixtures and fittings tested? To comply with Eurocode 1: Actions on Structures (BS EN 1991-1-1), all DuoSpan products have been thoroughly tested to meet regulations. This ensures optimal structural integrity and performance from individual components and the structure as a whole. This reassurance gives garden designers and landscapers peace of mind as they create their outdoor living spaces. What is DuoSpan? DuoSpan is an aluminium joist system designed to provide a solid and long-lasting foundation for your decking or cladding. Its components make up the innovative and durable framework for your Millboard product. This makes installing decking or cladding an easy solution. It has the flexibility to work around different shapes, sizes, heights, and challenges. Can I use any fittings with the DuoSpan Straight Connectors? The DuoSpan range of fixtures has been purposely designed to work in conjunction with the rest of the DuoSpan range and Plas-Pro subframes from Millboard. This means the 5.5 x 25mm DuoSpan hex-head screws will perfectly fit the pre-drilled holes to provide a secure and easy installation.
