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TOP GREEN Artificial Grass ProfessionalArtificial Grass Glossary

Sub-base

Technical term from the TOP GREEN Artificial Grass Glossary – clearly explained based on over 25 years of experience.

Briefly explained

The substructure is the foundation of any artificial turf area. It usually consists of compacted gravel and grit, ensuring an even surface and proper drainage.

The substructure plays a decisive role in the lifespan and appearance of artificial turf. If it is uneven or insufficiently compacted, dips and ripples will appear – and water will pool on the surface.

Typical structure in the garden

  1. Excavation of the topsoil
  2. Base layer of gravel, compacted in stages
  3. Levelling layer of grit or crushed sand, finely screeded
  4. Weed control fabric
  5. Artificial turf with edge trim

On balconies, terraces, or concrete surfaces, a gravel substructure is often not required – drainage or cushioning mats are used instead. We assess the ground conditions when planning your area.

Patrick Jonas, Managing Director of TOP GREEN
Expertly reviewed by

Patrick Jonas

Managing Director of TOP GREEN · Garden and Landscape ContractorMore about TOP GREEN
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