Installing synthetic turf looks simple from the outside — roll it out, pin it down, done. In practice, most of the work happens before the grass ever touches the ground. Here’s how a proper installation goes, step by step, along with a few things to watch for at each stage.
1. Prep the Site
Clear the ground. Dig out the existing soil about 4–6 inches deep across the area. This creates space for the base layer that will support the turf and handle drainage underneath.
Build the base. Install road base or crusher dust and compact it. Crusher dust compacts into a firm, even surface while still letting water pass through it, which is what keeps the base stable and lets water drain down into the ground instead of pooling under the turf. The final height should sit about 0.5 inches below the surrounding grade, too high and the turf will sit proud of nearby walkways or patios, too low and water can collect at the edges.
2. Lay the Grass and Join the Seams
Lay the grass. Roll out the turf and position the fibers so they all face the same direction. Installers typically orient the fibers to lean toward the main viewing point of the lawn. Grass blades reflect light differently depending on which way they’re leaning, so from that main angle the lawn reads as fuller and more evenly colored. If sections are laid with fibers pointing different ways, the seam between them tends to show, especially in direct light.
Join the seams. Instead of cutting a straight line down the edge of each roll, installers often follow an S-seam; cutting along the natural curve of the grass rows rather than straight across them. This lines up the blades from each roll so they interlock, which is what makes a seam disappear into the lawn instead of reading as a straight line. Seam tape and glue go down first to bond the two edges, then 4 inch galvanized nails are placed about 1/4 inch from the seam with a 3–4 inch gap between them, holding it in place once the adhesive sets.
3. Secure and Finish
Pin the edges. Secure the perimeter with 7 inch galvanized nails spaced about 6 inches apart. These tack the grass to the ground around the entire perimeter and keep the edges from lifting along borders and high traffic areas.
Add infill. Infill goes in last and does more than fill space between the blades; it weighs the grass down to hold it in place, helps the fibers stand upright instead of matting down, and adds cushioning underfoot.
Infill has a reputation problem that mostly traces back to older crumb rubber infill made from recycled tires, which raised legitimate concerns about chemical runoff and heat. That’s a different material from what’s typically used now. We use natural infill options — zeolite, silica sand, and Optifill — and we’ll cover the differences between them in a separate post.
What to Look for in the Materials
The install steps matter, but so does what you’re installing. A few things worth checking before you start:
- Backing — double-layer, fade-resistant backing holds up better over time than a single thin layer.
- Drainage — precision-spaced drainage holes help keep water moving through instead of pooling on the surface.
- Fiber quality — nontoxic, high-density fibers are easier to clean and hold up better if pets or kids are using the lawn regularly.
Final Thoughts
Each of these steps is straightforward on its own. The site prep stage is usually the one people rush, since it’s the part nobody sees once the grass is down. Taking the time there tends to make everything after it easier.
If you’re sourcing turf for a project, GrandGrass supplies synthetic turf rolls direct to contractors and homeowners across the Lower Mainland.Curious what fits your project?