The cross-section is one of the most important design elements affecting the mechanical behavior of synthetic grass.
S-Shaped Fiber
S-shaped fibers use an asymmetric profile to increase structural rigidity compared with a basic flat or round profile.
Potential advantages include:
- Improved resistance to bending
- Better upright retention
- Good recovery after compression
- Suitable balance between performance and manufacturing cost
They can be considered for schools, recreational sports facilities, community fields, and certain football applications.
C-Shaped or U-Shaped Fiber
The recessed geometry provides additional flexibility and deformation space.
This can be useful where the application requires:
- Good resilience
- Lateral deformation control
- Comfortable underfoot characteristics
- Frequent directional changes
The final performance still depends on the polymer formulation, dimensions, density, and backing system.
Hollow Diamond Fiber
Hollow diamond-type profiles are designed to combine geometric rigidity with controlled deformation.
Their potential advantages include:
- Efficient structural support
- Multi-directional resistance
- Good recovery characteristics
- Lower material consumption for a given geometric stiffness
For high-performance sports turf, this type of profile can be considered when supported by laboratory testing.
Importantly, manufacturers should provide actual test data rather than relying only on claims about cross-sectional geometry.
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