Platform & edge protection
What is a protection fan?
A protection fan is an inclined platform projecting from a scaffold to catch falling material and deflect it back towards the structure, protecting people below.
Use this diagram+
Free to use on your own site, in training material or in a course handout, as long as the credit link stays on it. Paste this where you want the diagram to appear.
<figure>
<img src="https://scaffoldoptix.co.uk/glossary/protection-fan/diagram.svg" alt="protection fan — scaffold diagram from ScaffoldOptix" width="880" height="620" loading="lazy">
<figcaption>
<a href="https://scaffoldoptix.co.uk/glossary/protection-fan">What is a protection fan?</a> — diagram by
<a href="https://scaffoldoptix.co.uk">ScaffoldOptix</a>
</figcaption>
</figure>Fans are used where there is a public footway, an access route or an occupied area beneath a scaffold, and where the risk of something falling cannot be eliminated by containment alone.
The incline is deliberate: a flat platform would let material bounce outwards, whereas a fan directs it back in. That geometry is part of the design rather than a matter of how it happens to be built.
A fan projects, which means it adds load and overturning to the scaffold and usually needs the tie pattern revisited.
What goes wrong on site
- Built flat rather than inclined, so material can bounce outwards.
- Added without the extra load and wind exposure being accounted for.
- Used as a working or storage platform, which it is not.