Why infill matters

Infill is the unsung hero of artificial turf performance. It stabilizes the system, supports blade posture, and protects the backing from abuse. When levels drop, performance drops with it.

  • Cushioning and safety: Maintains shock attenuation and reduces hard landings.
  • Ballast and stability: Keeps the turf from shifting and wrinkling.
  • Blade support and look: Holds fibers upright for a natural, clean appearance.
  • Performance consistency: Helps even out traction, foot feel, and playability.

How to check your infill level

Quick checks

  • Fiber posture: Blades leaning or matted after brushing signals low infill.
  • Feel test: Surface feels hard underfoot or slap-sounds on impact.
  • Visual gap: You can see backing or thatch layer on high-traffic lanes.
  • Seams and edges: Exposed stitch rows or lifted edges indicate loss of ballast.

Simple tools

  • Stiff broom or power broom to stand fibers up before inspection.
  • Depth probe or small screwdriver to gauge infill depth at several points.
  • Drop spreader for controlled, even application when topping up.

Target levels

  • Landscape turf: Infill should sit within the thatch, with roughly half to three-quarters of blade height standing free.
  • Sports turf: Follow system specs for target depth and shock performance.
  • Putting greens: Keep infill even with the thatch for true roll; top up only to restore speed and smoothness.

How often to top up by application

  • Residential yards and play areas: Inspect quarterly; top up as needed, often every 12 to 24 months in busy spots.
  • Sports fields and training areas: Inspect monthly in season; light top ups one to two times per season depending on use.
  • Pet runs and kennels: Inspect monthly; plan two to three small top ups per year, focused on paths and potty zones.
  • Putting greens: Inspect monthly; top ups are occasional and light to maintain roll speed and smoothness.

How to add infill correctly

  1. Match the material: Use the same infill type specified for your turf system to maintain performance and warranty alignment.
  2. Prep the surface: Remove debris, groom with a stiff broom or power broom, and ensure the turf is dry.
  3. Apply in light passes: Use a drop spreader and broadcast thin, even layers.
  4. Work it in: Broom against and then with the grain until the infill settles uniformly.
  5. Re-check depth: Spot check several locations and add a second light pass if needed.
  6. Final groom: Brush fibers upright for a consistent, finished look.

Safety note: If using sand-based infills, wear eye and dust protection during application. Only apply dry material to avoid clumping.

Choosing the right infill material

  • Silica sand or coated sand: Reliable for most landscape applications and putting greens. Coated options can help with cleanliness and cooling.
  • Antimicrobial coated sand: Popular for pet areas due to odor control and hygiene benefits.
  • Rubber and elastomer blends (EPDM, TPE): Common on sports systems that target specific shock and energy return profiles.
  • Organic options (cork or coconut blends): Used in some systems; follow the installer’s guidance for upkeep and moisture management.

When in doubt, follow the turf manufacturer’s specification for material type, gradation, and target weight.

How much infill to add

  • Start from the original spec: Most landscape systems call for 1 to 2 pounds per square foot at install. A top up is typically 10 to 25 percent of the original amount.
  • Rule of thumb: For 100 square feet, plan for 25 to 75 pounds for a light to moderate refresh, adjusting after spot checks.
  • Finish criteria: Fibers stand upright, seams sit flat, and the surface feels uniformly cushioned.

Common mistakes to avoid

  • Overfilling in one pass, which can suffocate fibers and create uneven traction.
  • Mixing incompatible infill types that change performance or void warranty guidance.
  • Applying wet material that clumps and resists grooming.
  • Skipping grooming, which leaves ridges and poor blade support.
  • Ignoring edges and seams where ballast is most critical.

Make your infill last longer

  • Groom every 4 to 8 weeks to lift fibers and redistribute infill.
  • After events or heavy use, do a quick broom pass to even out traffic lanes.
  • Use walkways or mats in choke points to reduce displacement.
  • Keep debris off the surface so fines do not bind and harden the infill.

When to call a pro

If your surface feels uneven after a careful top up, if you manage a sports field with defined performance targets, or if you see recurring seam movement, bring in a FusionTurf dealer. We diagnose, measure, and dial in the right infill plan fast.

Want the easy button for artificial turf infill maintenance? Connect with FusionTurf and we will keep your surface tuned, safe, and looking sharp.