Turf Infill Types Explained: Which is Best for Your Lawn

When most people think about artificial turf, they think about the green blades on top. But the stuff between those blades—the infill—is arguably more important to how your turf looks, feels, and performs over time. Infill is the hidden ingredient that makes the difference between turf that feels like carpet and turf that feels like a real lawn.

There are several infill options on the market, and the right choice depends on how you’re using your turf. Here’s an honest breakdown of each type from someone who’s worked with all of them.

What Infill Does

Before comparing products, let’s understand why infill matters. Infill serves four essential functions:

• Weight: It holds the turf in place, preventing shifting and buckling, especially in Georgia’s heavy rains and occasional strong winds.
• Blade support: Infill sits at the base of the turf blades, keeping them standing upright. Without infill, the blades lie flat and the turf looks matted.
• Cushion: It creates that soft, natural feel underfoot. Different infill types provide different levels of cushioning.
• Drainage: Infill helps direct water through the turf backing and into the base layer. The right infill improves drainage; the wrong infill can impede it.

Infill Types Compared

Here’s a quick comparison of the main infill types: Silica Sand is best for general lawns and budget installs at low cost (Good rating). Durafill is best for pet areas and odor control at moderate cost (Excellent rating). ZeoFill is best for pet areas with natural odor control at moderate cost (Very Good rating). Crumb Rubber is best for sports fields and playgrounds at moderate cost (Good for specific uses). Envirofill is best for cooling and antimicrobial needs at higher cost (Excellent rating). Acrylic-Coated Sand is best for temperature reduction at moderate cost (Very Good rating).

Silica Sand

Silica sand is the most basic and most affordable infill option. It’s exactly what it sounds like—fine-grain sand that’s been washed, dried, and sized for use in turf applications. It does the job of weighing down turf, supporting blades, and allowing drainage.

We use silica sand as our standard infill for general lawn applications where there aren’t pets, heavy foot traffic, or extreme heat concerns. It’s reliable, cost-effective, and has been the industry standard for decades.

The downside: it doesn’t do anything special. No odor control, no cooling properties, no antimicrobial protection. For a front yard that’s primarily decorative, it’s perfect. For a backyard with dogs? You want something better.

Durafill

Durafill is our go-to infill for pet turf installations. It’s an acrylic-coated sand product with built-in antimicrobial properties that actively inhibit the bacteria responsible for pet urine odor. It also has a rounded grain shape that allows excellent drainage—critical for pet areas where liquid needs to move through quickly.

We’ve used Durafill in hundreds of pet turf installations across North Georgia, and the feedback is consistently positive. Pet owners notice a significant difference in odor control compared to standard silica sand, especially during Georgia’s hot summer months when odor issues are at their worst.

Cost is moderate—about 2-3x the price of basic silica sand, but for a typical residential installation, the difference in total project cost is relatively small (a few hundred dollars for most yards).

ZeoFill

ZeoFill is made from zeolite, a naturally occurring volcanic mineral. Zeolite has a unique molecular structure that absorbs ammonia and other odor-causing compounds from pet urine. It’s essentially a natural deodorizer that works through chemistry rather than just antimicrobial coatings.

ZeoFill is a solid choice for pet owners, particularly those who prefer natural products. It’s non-toxic, chemical-free, and can be “recharged” by rinsing with water—the absorbed ammonia gets flushed out, resetting the zeolite’s absorption capacity.

The trade-off compared to Durafill: ZeoFill is lighter, which means it can shift more easily in heavy rain. In Georgia’s climate, with our intense summer storms, we sometimes see ZeoFill migration in drainage channels. Using it in combination with a heavier base infill (silica sand underneath, ZeoFill on top) can solve this.

Crumb Rubber

Crumb rubber is made from recycled tires and has been the standard infill for sports fields for decades. It provides excellent cushioning, which makes it popular for athletic applications and playgrounds. The rubber granules are resilient and maintain their cushioning properties over many years.

However, crumb rubber has faced criticism regarding potential health and environmental concerns. While major studies (including those by the EPA and CDC) have not found definitive health risks, the public perception has shifted, and many municipalities and school districts have moved away from crumb rubber in favor of alternative infills.

We don’t typically recommend crumb rubber for residential installations. It gets significantly hotter than sand-based infills in direct sun (a real concern in Georgia), it has a distinct rubber smell when new, and it can track—meaning small black granules end up on your patio, in your house, and stuck to kids’ clothes.

Envirofill

Envirofill is a premium acrylic-coated sand infill with built-in Microban antimicrobial protection and cooling technology. It’s essentially the top-of-the-line option that combines odor control, temperature reduction, and long-term durability in one product.

The cooling technology uses a special coating that reflects rather than absorbs solar radiation, keeping surface temperatures 15-20% lower than standard infill on hot days. In Georgia’s summer, that can mean the difference between comfortable bare feet and an unpleasant walk across the yard.

The downside is cost—Envirofill is the most expensive common infill option, typically 3-4x the price of silica sand. For homeowners who want the absolute best performance and are willing to invest, it’s an excellent choice.

Our Recommendation by Application

• Front yard / decorative lawn: Silica sand. Cost-effective and gets the job done.
• Backyard with dogs: Durafill. Best balance of odor control, drainage, and cost.
• Backyard with dogs + children: Envirofill. The cooling and antimicrobial combo is worth the investment when kids are playing on the same surface pets use.
• Putting green: Silica sand (specific grade). Putting greens need a precise infill size to achieve the right ball roll speed.
• Playground: Silica sand with shock pad underneath. The pad handles cushioning; the infill just needs to support the blades.
• High-sun areas: Acrylic-coated sand or Envirofill. The cooling properties matter most in full-sun Georgia exposures.

The infill conversation might seem technical, but it has a real impact on your daily experience with your turf. Ask your installer what they’re recommending and why. If they can’t explain the infill choice or default to whatever’s cheapest, that’s a red flag.