If you specify, buy or install surfacing for children's play areas, three letters matter: HIC — the Head Injury Criterion. It is the standard measure used around the world to judge whether a surfacing material will protect a child's head in a fall.
The idea behind the test is simple. A weighted headform is dropped onto the surface from a set height, and the acceleration of impact is measured. The results are expressed in two ways:
Two standards dominate playground surfacing around the world:
Why it matters for your project: compliance is not optional for most commercial, school and public playgrounds — in many markets, surfacing must be certified before a playground can open. And the critical fall height must match the tallest equipment on site.
This is where certified interlocking safety puzzle pads earn their place. Because performance is thickness-dependent, a factory-tested puzzle pads gives you a predictable, documented HIC result.
A certified puzzle pad is only as good as its installation. Lay puzzle pads on a firm, level base, keep the joints tight and re-check the surface after repairs or seasonal movement.
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Our interlocking playground puzzle pads are HIC-tested. Request the test report for your fall height
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