Hardscape and Paver Installation: Base Prep and Screeding for First-Timers

What the work looks like

Hardscape is the stone, concrete, and paver work in a landscape: patios, walkways, retaining walls, fire pits, steps, driveways. It is where landscape crews earn their best money (paver patios run $18 to $40 per square foot installed) and where a new hire most often starts digging, hauling, and screeding. The job sequence is the same everywhere: mark the area, excavate, install base, compact, screed sand, lay pavers, cut to fit, install edge restraint, sweep joint sand, compact again.

Pavers are concrete or clay blocks designed to interlock when jointed with polymeric sand. Common brands: Belgard, Techo-Bloc, Unilock, Nicolock. A 3000-psi concrete paver lasts 30+ years if the base is done right. The base is the job; the pavers are just the visible part.

Job titles: Landscape Laborer, Hardscape Installer, Hardscape Foreman. Pay starts at $16 to $20 per hour and goes to $25 to $35 for skilled installers. Foremen and estimators make more.

Safety and tools

Base build-up (for a patio walked on, not driven on):

1. Excavate to 7 inches below final grade (1 inch sand + 4 inches base + 2 inches paver, roughly). Driveways need more.
2. Compact subgrade with a plate compactor (Multiquip MVC-80 or similar).
3. Install 4 inches of 3/4 inch minus crushed stone (often called "paver base" or "road base"). Compact in 2-inch lifts.
4. Screed 1 inch of concrete sand (ASTM C33) level to grade using screed rails (1 inch EMT works).
5. Lay pavers in the chosen pattern (herringbone, running bond, ashlar). Do not step on the sand.
6. Cut perimeter pavers with a wet saw (MK-2000 or Husqvarna). Safety glasses, hearing protection, water flow to suppress silica dust (OSHA silica rule 29 CFR 1926.1153).
7. Install edge restraint (PaverEdge or concrete toe), spike every 12 inches.
8. Sweep polymeric sand into joints, mist lightly, cure.

Safety:

• Silica from cutting concrete pavers is a known carcinogen. Wet-cut and wear an N95 or half-mask respirator rated P100. Never dry-cut pavers indoors or in an enclosed area.
• Sun and heat: hydrate, take breaks, know the signs of heat exhaustion and heat stroke.
• Lift with your legs. Pavers are 8 to 14 pounds each, a pallet of 140 pavers is over 1 ton.
• Eye protection for all cutting.
• Steel-toe boots, hearing protection near the compactor and saw.

Tools: plate compactor, wet saw with 10 or 14 inch diamond blade, rubber mallet, 4-foot level, string line and stakes, paver base gauge or screed rails, pointing trowel, wheelbarrow, shovels (round-point for digging, square-point for moving base), steel rake.

Your first exercise

Lay out a small patio in chalk in your driveway. 10 feet by 10 feet. Think through each step: where does the water drain (2 percent slope away from the house)? What shape are the pavers and what pattern hides a bad install versus shows it (herringbone hides small screw-ups; running bond telegraphs them)? Where does the edge restraint go?

Walking through the job in your head before the crew shows up is what every good foreman does.

Where to go next

Build on Hardscape with Landscaping Fundamentals (Introduction to Landscaping), Retaining Walls, Drainage and Grading, Small Engine Repair, Tree Trimming (Introduction to Tree Trimming), and Equipment Operation (skid steer, mini excavator). Safety: Silica Awareness (OSHA 1926.1153), Heat Illness Prevention, Workplace Safety.