How thick should fall protection mats be?

The required thickness of safety mats primarily depends on the maximum critical fall height they need to protect against. This is regulated by the European standard DIN EN 1177, which specifies the mat thickness required for specific fall heights to minimize injury risks during a fall.

Factors Influencing Mat Thickness

  • Maximum fall height: The fall height is the most important factor when choosing mat thickness. It refers to the distance between the highest potential fall position (e.g., a platform) and the safety surface.
  • Material and design: The shock-absorbing properties of the material influence the required thickness. Safety mats are often made from recycled rubber granules, available in different hardness levels and elasticities.
  • Subsurface: The type of surface the safety mats are installed on matters. Firm, even surfaces require less thickness compared to soft or uneven surfaces.

Recommended Mat Thickness by Fall Height

The thickness of safety mats is adjusted based on fall height. According to DIN EN 1177, the following guidelines apply:

  • Fall height up to 100 cm
    Mat thickness: 20–30 mm
    Use case: Areas with low fall risk, such as crawling zones, toddler play areas, or fitness studios.

  • Fall height up to 150 cm
    Mat thickness: 40 mm
    Use case: Beneath balance beams, low slides, or seesaws.

  • Fall height up to 200 cm
    Mat thickness: 50 mm
    Use case: Playgrounds with medium-sized equipment such as swings or climbing frames.

  • Fall height up to 300 cm
    Mat thickness: 70–100 mm
    Use case: Beneath tall climbing towers, climbing nets, or advanced fitness installations.

Special Considerations for Mat Selection

  • Elasticity and shock absorption:
    Thicker mats offer better shock absorption by distributing impact energy over a larger area. High-quality rubber granules or composite materials can provide effective protection even with thinner mats.

  • Environmental conditions:
    Mats used outdoors should be weather-resistant and permeable to water to prevent slipping or puddle formation during rain. Thicker mats are generally more durable against temperature fluctuations and heavy use.

  • Cost and installation effort:
    Thicker mats are more expensive and require more effort to install. They often need a sturdier base to ensure optimal protection.

Combined Systems

In some cases, combining safety mats with other shock-absorbing materials, such as sand, gravel, or safety grass, can be a practical solution. These hybrid systems can reduce the required mat thickness while still meeting safety standards.

Conclusion

The optimal thickness of safety mats depends on the maximum fall height, material quality, and specific requirements of the application. Common thicknesses range from 20 mm for low fall heights to 100 mm for fall heights up to 300 cm. It is essential to comply with applicable safety standards and consult an expert or manufacturer to select the right solution for your needs.