Playground Design Glossary

Critical Fall Height

This is the maximum height that a child could fall from a piece of equipment. Take a tower as an example; the highest height of the tower itself might be 3.5m while the highest accessible platform might be 1.5m. The Critical Fall Height of the tower would be 1.5m, as this is the highest point on the product that they can access.

Once the Critical Fall Height is determined, it is possible to find the required surface depth for your playground. This ensures you are using the correct depth in your surface for each separate piece of equipment. Don’t forget, each piece will have different fall heights so this is important.

These are the recommended surface depths that our surfacing team works to based on a measured Critical Fall Height.

Critical Fall Height(m) Minimum Depth(mm)
1.3 40
1.5 50
1.7 60
1.9 70
2.3 80
2.4 90
2.7 100
2.9 110
3.2 130

Wet Pour

Playground Surfacing, Rubber Crumb, Soft Surfacing, Soft Tarmac

Ground rubber is formed into this impact absorbing surface. Wet Pour is the popular option for finishing a ground surface in order to add colour, patterns and structure.

Not only will a playground become much more aesthetically pleasing with the addition of Wet Pour, the opportunities it opens up to the playground are vast. Trackways can be designed and made from the surfacing. The playground can be separated by borders, lines and shapes in order to keep dedicated spaces for different play types. Graphics can be made out of the surfacing in order to aid learning through play while other shapes can be made for playing games.

View our gallery of Wet Pour projects for a better understanding of how the surfacing can be best utilised.

Playground Design Glossary was last modified: February 23rd, 2021 by Steve Bell

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