Main Page

From TGN Online
Revision as of 15:15, 14 June 2023 by Admin (Talk | contribs)

Jump to: navigation, search

2022.03.21 - TGN, What is it email.jpg


TGN Online is a web-based version of SMD's Technical Guidance Notes which has been developed since 2006. Our TGN's are in continuous development based on industry changes, product updates and FAQ, creating the most comprehensive guidance on Health & Safety, design, installation, fall arrest systems, floor & roof deck, stud welding & concrete slabs using metal decking.


For the full Contents list, see the button in the orange bar above, alternatively, navigate the start of each section using the quick Menu Bar to the left.

Should there be any items or topics that are not covered in the TGN, please contact us and we can look to adding information to both the hard copy manual and online.


Problems on these pages? Should you find any problems on any pages, feel they are not clear or find any links that do not work please contact our Admin Team to have this rectified.


Need more information? For more information on any of the sections in on this site, contact us on +44 (0) 1202 718 898 or email our Technical Team



Changes and Updates:-

2023/06/14 ____ 13.6 - TAB-Deck™ – Fibre concrete - correction.

2022/08/08 ____ 8.18 - Forming openings - Section updated

2022/04/22 ____ Best Practice Data Sheet references removed, content from Data sheets added to TGN throughout. This includes the following:-


2022/01/05 ____ 4.6 - Fixings - Fixing references updated

2020/11/20 ____ 8.13 - Fixing specification - Fixing specification Updated

2020/01/14 ____ 8.18 - Forming openings - 2. Medium Opening Section updated


2019/11/07 ____ Various Sections updated


2018/08/14 ____ Extensively updated to include changed to TR50 and R51+ (throughout)

2017/04/18 ____ 5.4 - Moving concentrated loads updated with additional sub-section - 5.4.2 Typical plant that can be used on the slab during construction

2017/08/09 ____ 9.3 - Offloading, hoisting and storage Paragraph and Fig 9.3a added

2017/08/09 ____ 8.18 - Forming openings New Section added

2017/08/09 ____ 5.6 - Forming service holes Table 5.6a added

2017/11/14 ____ 9.2 - Pack size and sheet length limits Table 9.2b updated