TECNI Stainless Steel Cable Balustrade for Decking. UK Manufactured Decking Cable Balustrade Products. Installs Rapidly for a Maintenance Free Stainless Cable Railing Infill. The TECNI Standard 4mm Cable Balustrade is a great DIY Cable Balustrade Solution for Decks & Poolside Railings. The 6mm Wire Balustrade Kit gives a Heavier DIY Infill for Larger Posts. For Large Commercial Cable Railing Installation our TECNI Tensor Stainless Cable System is the one to choose for easy on-site installation.