Why it matters
A beautiful turf product cannot hide a base that settles, holds water, erodes, or was shaped incorrectly. Material selection, depth, moisture, lift thickness, compaction, and finish grade all matter.
How it is used
After excavation and subgrade preparation, aggregate is placed, graded, compacted, and checked before turf installation. The correct assembly depends on soil, drainage, use, climate, and local practice.
The money question
How can it affect project cost?
Base work affects excavation, hauling, aggregate quantity, equipment, and labor. Existing soil, access, required depth, drainage correction, and disposal can change cost substantially.
Common mistakes
- Specifying a material name without gradation or installation requirements
- Compacting only the surface of a deep loose layer
- Using base work to conceal unresolved drainage problems
Questions to ask an installer or supplier
- What material, compacted depth, and preparation are included?
- How will compaction and finished grade be checked?
- What site conditions would change the base design or price?
Sources and review
- Synthetic Turf Council: Guidelines for Essential Elements of Synthetic Turf Systems
- Synthetic Turf Council: Glossary of Synthetic Turf Terms
Editorially reviewed July 18, 2026. General educational guidance; verify product claims and site conditions for your project.