Artificial grass looks finished and plays well only when what lies beneath it is built correctly. This guide walks you through infill selection, base preparation, drainage design and the finishing details that separate a professional installation from a shortcut job. Whether you are converting a Bahia lawn that has thinned under deep oak shade, creating a dog area that will not turn to mud during Lakeland's afternoon thunderstorms, or preparing a pool surround or patio for years of low-maintenance use, understanding these layers will help you ask the right questions and verify that your installer has a plan in writing.
Lakeland's sandy soils, clay pockets and fast summer rainfall mean that drainage is not optional. This guide is for homeowners in Lakeland and the surrounding areas who want to know what goes into the ground, why it matters, and how to confirm that the work meets the standard of a local, independent turf installation company that names the product, the infill and the base depth before the job begins.
Turf Infill Options: Silica, Coated Sand, Zeolite and Envirofill
Turf infill is the material that sits on top of the backing and between the fibres. It serves multiple purposes: it props the grass fibres upright so they feel and play naturally, it protects the backing from ultraviolet light, it adds weight so the turf stays in place in wind, and it helps water drain through the system. The most common infill is silica sand, a basic ballast that is affordable and effective. Silica is angular and durable, but some homeowners prefer coated sand, which is rounded, often coloured to match the turf, and gentler underfoot and on bare feet.
Zeolite is a microporous mineral that is sometimes added to or blended with sand, particularly in pet turf applications, because it has a natural affinity for ammonia and can help reduce odors in high-use dog areas. Antimicrobial and cooling coated infills, such as materials marketed under the name Envirofill, are engineered to inhibit bacterial growth and lower surface temperature in full sun. Crumb rubber, recycled from vehicle tyres, is standard in sports fields and synthetic turf courts where impact absorption and durability under heavy play are the priority, but it is less common in residential yards. The choice of infill depends on the turf product, the intended use, your budget, and the local climate and conditions.
How Much Infill Artificial Grass Needs, and Why
Infill is specified in pounds per square foot, and this number is one of the most important details on a written spec. Infill does more than fill space. It holds the fibres upright so the turf retains its appearance and playability, it shields the backing from UV degradation that can shorten the turf's life, it adds weight that keeps the turf from shifting in wind or under foot traffic, and it participates in drainage by allowing water to percolate through to the base. Too little infill is a common shortcut of budget installations: the turf looks thin and flat, the backing degrades faster, and the fibres mat down under use.
Typical infill rates range from about 1.5 to 3 pounds per square foot, depending on the pile height, face weight and intended use of the turf. A dense residential turf might call for 2 to 2.5 pounds per square foot, while a pet turf or play area might be specified higher for durability and impact. Before you sign a contract, ask your installer for the infill amount in writing as part of the full specification. If the figure is missing or vague, that is a sign to ask more questions or seek another bid.
What to Put Under Artificial Grass for Drainage
The layers under artificial grass are as important as the turf itself. The process begins with removal: the existing lawn, dead sod, roots and any old turf must come out. Once the area is cleared, excavation follows. The depth depends on the site, but the goal is to create a stable, well-draining foundation. A weed barrier (a permeable landscape fabric) is then laid to prevent weeds and roots from pushing up through the base. Over that goes a free-draining base material such as decomposed granite or crushed base rock, typically three to four inches, compacted firmly in layers so it does not settle unevenly later.
For pet areas, play spaces and patios, an optional draining underlay or foam pad is then installed over the compacted base. This layer adds comfort, helps with drainage in heavy rain, and can reduce odors in dog runs. The turf is then laid and secured over this prepared foundation. On hard surfaces such as concrete or balconies, the approach is different: turf is never glued flat to a slab that holds water. Instead, a draining underlay or pad is installed, edge drainage is provided so water runs off, and the turf is secured at the perimeter so air can circulate beneath it and water can escape.
Base Prep on Lakeland Soil: Excavation, Base Rock and Compaction
Lakeland sits on fast-draining sugar sand over pockets of clay and the phosphate country to the south. This mixed geology means base preparation is not one-size-fits-all. Where the soil is sandy and well-draining, excavation may be modest, but the base must still be compacted so it does not settle under the weight of the turf and foot traffic. Where clay is present or the yard has a history of puddles, excavation is deeper and the base material is chosen and compacted with more care. The goal is always the same: a firm, level or gently sloped surface that sheds water away from the house and pool.
A typical base prep involves excavating four to six inches, grading the floor so water runs away from structures, laying a weed barrier, and then installing three to four inches of compacted decomposed granite or crushed base rock. The base is compacted in lifts (layers) using a plate compactor, which ensures it does not settle or develop soft spots later. An uncompacted base is one of the most common causes of dips and puddles under turf, and it also traps moisture and odors in pet areas. If a yard has a genuine water problem, such as a low spot that floods or a perched water table, drainage must be addressed before turf is laid. In those cases, we recommend fixing the drainage issue first, or we decline the job rather than install turf that will fail.
Artificial Grass Drainage and Underlay: Perforated vs Fully Permeable
Artificial grass backing comes in two main types: perforated and fully permeable. Perforated backing has small holes that allow water to pass through, while fully permeable backing is engineered so water flows freely through the material itself. The drainage rate is measured in gallons per hour per square foot, and faster is better. A quality residential turf typically drains at 15 to 30 gallons per hour per square foot or faster, which is well ahead of typical rainfall. Pet areas and play spaces are the real test: they see concentrated water from hose rinsing, concentrated foot traffic and urine, and heavy afternoon thunderstorms. A fast-draining turf backing is essential in these applications.
However, even the best turf backing cannot overcome a poor base. If the base is not compacted, or if the ground beneath it does not slope and drain, water will pool under the turf and create soft spots, odors and algae. Underlays and foam pads are sometimes installed between the base and the turf to add comfort and improve drainage in areas like patios, play spaces and dog runs. These pads are typically one-quarter to one-half inch thick and are perforated or open-cell so water passes through. The pad does not replace good base prep; it complements it. When you review a spec, ask for the turf's drainage rate and confirm that the base has been properly prepared to shed water.
Seams, Nails, Edging and Power Brooming
The finishing details separate a professional installation from a rushed one. Seams are joined using seam tape and a polyurethane or latex adhesive applied to both sides of the backing. The two pieces are pressed together and held in place until the adhesive sets. A skilled installer aligns the grain (the direction the fibres lie) so the seam is nearly invisible and the turf looks like one continuous surface. Nails or staples are driven around the perimeter and along any seams at the correct spacing (typically six to eight inches apart) so the turf stays anchored without being over-stressed. Loose or widely-spaced fasteners allow the turf to shift and seams to separate, especially in heat and wind.
Edges are finished with bender board, metal edging or a secured perimeter so the turf does not fray or curl up. On patios and pool surrounds, the turf is cut tight to pavers so there is no gap for water to pool or weeds to grow. Once the turf is secured, power brooming is the final step: a stiff brush pulled across the surface stands the fibres upright, spreads the infill evenly and removes any debris from installation. A visible seam, lifted edges, loose fasteners or a flat, matted appearance after installation are all signs that the work was rushed. Ask to see finished work and inspect the seams and edges closely.
What a Written Turf Spec Should Include
Before work begins, you should receive a written specification that covers every layer and every product. A complete spec includes the turf product name and fibre type (polyethylene, polypropylene or nylon), face weight in ounces per square yard, pile height in millimetres, backing type and its drainage rate in gallons per hour per square foot, infill type and the amount in pounds per square foot, base material and depth (typically three to four inches), base compaction method, whether a weed barrier is included, seam method and adhesive type, edging material and method, cleanup and haul-off, and the workmanship warranty period. This spec is your contract. It tells you exactly what you are getting, and it gives you a standard against which to verify the finished work.
A professional turf installation company will provide this spec on request and will stand behind it. If an installer is vague about infill, base depth, or the turf product itself, or if they quote only a price per square foot without these details, that is a red flag. For pricing information and to discuss your project, contact Lakeland Turf Installation for a free estimate, where we will measure your site, answer your questions, and provide a written spec before you commit.