What's New in TG20:21

Posted by Matthew Robinson on Oct 8, 2021 4:03:15 PM


TG20 is a guide to good practice for tube & fittings scaffolds produced by the NASC. The latest version of this guidance TG20:21 builds on the previous version TG20:13. There are a number of differences between TG20:13 & TG20:21. Perhaps the biggest change is in the way the new guide is delivered. Previously TG20:13 was outlined in two physical books, the TG20:13 Operational Guide & the TG20:13 Design Guide. These were accompanied by the TG20:13 e-guide software for producing the TG20 compliance sheets, but the software was only licensed for use on one machine. For TG20:21 the Operational Guide, Design Guide & e-Guide software have all been incorporated into a subscription based online portal called the NASC e-Portal. This allows for several devices including computers, tablets & smart phones to access the guide with one subscription.

There are a number of changes within the guide itself & the e-Guide software has also been updated to allow TG20 compliance sheets for a wider range scaffolds. Below is a list of some of the changes that have been made. Although this list is not exhaustive, we have tried to include the most important changes. A full list of the changes are listed within TG20:21 itself.

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Topics: Scaffold Design, TG20, TG20:21, NASC

When A Scaffold Does & Doesn't Need A Design

Posted by Matthew Robinson on Sep 15, 2021 3:00:00 PM


Whether work is taking place on a domestic or commercial property, one of the main considerations that clients have is whether scaffolding arrangements require a design. While the HSE has compiled a useful list of scaffold arrangements that
need a design prior to work taking place, it’s understandable that confusion
sometimes arises.

Historical practices throughout the scaffolding industry and documents which highlight when scaffolding needs a design – such as the TG20:21 guidance literature - often clash.

That’s not to say TG20:21 isn’t specific or prescriptive in regard to the requirements of scaffolding which can be erected without further design requirements – factors such as the estimated wind load, whether the scaffolding is netted/sheeted, where the scaffolding is located etc. are usually taken into consideration. Ultimately, your scaffold configuration could meet some or all of these criteria, but perhaps the ultimate guidance as to whether you need a design is to consider what your customer wants.

It’s possible to argue that certain scaffold configurations won’t require a design if it complies with the British Standard/TG20. In these circumstances a TG20:21 compliance sheet can be used instead of a full design. However, if your customer insists on a design, in most cases you’ll have no choice but to provide one. Most large-scale contractors won’t allow scaffolds to be erected on-site without a design. These designs often form a vital component of the contractors’ Health & Safety management – and furthermore, designs are useful to co-ordinate all tradespersons who may need to use the scaffold.

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Topics: Scaffold Design, TG20, TG20:21

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Guide To When A Scaffolding Does And Doesn't need A Design