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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.
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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:-
- 2023/11/03
- Site-wide styling updates to allow for the height of the Header when clicking links
- 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:-
- 9.1 - Delivery and access
- 10.1 - Safety nets
- 11.0 - Installation - Floor deck and shear studs
- 12.1 - Site considerations
- 4.1 Construction stage and construction deflections
- 4.5 - Bearings / Support
- 4.6 - Fixings
- 6.6 - Shear stud spacing - Section 6.6.1 - Studs to raking beams
- 6.9 Pre-studded beams
- 7.2 - Fixing tool and stud welding gun restrictions
- 7.4 - Durability
- 9.5 Lifting Shear Studs to Level
- 10.1 - Safety nets - Section 10.1.3 - Safety Nets Used in Isolation
- 11.0 - Installation - Floor deck and shear studs - Section 11.0.4 - Perimeter Edge Protection
- 11.0 - Installation - Floor deck and shear studs - Section 11.0.5 - Access to Level
- 11.0 - Installation - Floor deck and shear studs - Section 11.0.6 - Manual Handling
- 11.3 - Unpainted top flanges - Section 11.3.1 - Stud Welding to Painted/Galvanised/Contaminated Beams
- 11.5 - Static generator or mains supply - Section 11.5.1 - Power Supply for Stud Welding
- 11.6 Stud welding, Testing - Section 11.6.1 - Removal of broken ferrules
- 11.7 Stud Welding causing Scorching to beam
- 11.8 - Minimising grout loss - Section 11.8.1 - Grout Loss, Seepage and Concrete Overspill
- 11.9 Void Protection
- 11.10 VoidSafe® Protection System
- 11.11 Disposal of Waste
- 12.1 - Site considerations
- 12.9 - Surface finish
- 12.10 - Surface flatness
- 12.13 Surplus concrete waste
- 13.7 - Off-site cutting
- 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
- 8.1 - Quality - Table 8.1a updated (SR100+)
- 8.18 - Forming openings - Table 8.18a updated (SR100+)
- 9.2 - Pack size and sheet length limits - Table 9.2a updated (SR100+)
- 13.8 - Service fixings - Section 13.8.2 added
- 13.9 - Plastisol (PF) Coating - New Section added
- 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
