What Should You Put Under Soft Artificial Grass?
As soft artificial grass becomes increasingly popular for home lawns, sports fields, and commercial landscaping, more people are wondering: What should you install underneath artificial turf? The good base layer is crucial—it extends the lifespan for your soft artificial grass, enhances comfortable, and improves drainage systerm. This article provides a detailed guide to choosing the best foundation for your artificial grass, helping you create a beautiful and functional green space.
Why Does Soft Artificial Grass Need a Base Layer?
Some people mistakenly believe soft artificial grass turf can be laid directly on soil or concrete. However, the first based layer significantly impacts performance and durability of the installation. Here’s why it matters:
1. Drainage – A proper base prevents water buildup, reducing mold and odors.
2. Leveling the Surface – Fills in uneven spots to avoid bumps and dips in the turf.
3. Cushioning – Provides shock absorption, especially important for play areas and sports fields.
4. Weed Prevention – Blocks weeds from growing through the turf, reducing maintenance.
Common Base Materials for Polyethylene Artificial Grass
Depending on your budget and usage, here are the best options for an artificial grass base:
1. Crushed Stone or Gravel (Most Cost-Effective Option)
Best for: Backyards, patios, balconies
Advantages:
- Affordable and easy to install
- Excellent drainage
- Stable and resistant to settling
Installation Steps:
1. Make sure the ground clean without weeds and debris.
2. Lay a 2-4 inch (5-10 cm) layer of crushed stone (10-20mm recommended) and compact it.
3. Then lay a landscape fabric (weed barrier) to avoid soil and weed growth.
4. Install the artificial grass on top.
2. Sand Base (Ideal for Sports Fields & High-Traffic Areas)
Best for: Soccer fields, putting greens, golf practice areas
Advantages:
- Better shock absorption for sports
- Stabilizes the turf to prevent shifting
Installation Steps:
1. Start with a 2-inch (5 cm) gravel layer for drainage.
2. Add a 1-2 inch (3-5 cm) layer of fine sand (silica sand recommended) and level it.
3. Cover with landscape fabric before laying the turf.
3. Rubber Infill (Top Choice for Professional Sports Fields)
Best for: Soccer pitches, running tracks, playgrounds
Advantages:
- Superior cushioning for joint protection
- Highly durable for heavy use
Installation Steps:
1. Lay a gravel and sand base firstly.
2. Add a 0.5-1 inch (1-2 cm) layer of rubber granules and compact.
3. Lay the artificial grass and add extra rubber infill for bounce.
4. Foam Underlay (Great for Rooftops & Decks)
Best for: Patios, rooftops, balconies
Advantages:
- Soft and comfortable underfoot
- Provides insulation in hot/cold climates
Installation Steps:
1. Lay directly over a flat surface (concrete or wood).
2. Fixed the seams with seam jointing tapes to prevent movement.
3. Install artificial grass on top.
When Can You Skip the Base Layer?
In some cases, a full base layer isn’t necessary:
- Temporary setups (events, exhibitions) can lay turf directly on hard surfaces.
- Extremely tight budgets may use just a weed barrier, but drainage and durability will suffer.
Common Mistakes to Avoid
1. Skipping the weed barrier → Weeds grow through the turf, increasing maintenance.
2. Poor compaction → The base sinks over time, causing uneven turf.
3. Insufficient slope for drainage → Water pools, attracting pests.
Final Thoughts
Make sure a good choice for the right base for soft artificial grass turf ensures long-lasting, high-performance turf. Whether for landscaping or sports, a well-prepared foundation makes all the difference. We hope this guide helps you create and perfect the artificial lawn installation!
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