TryBuildCalc

Artificial Grass / Synthetic Turf Calculator Verification Checklist

Essential Checklist+

Complete these critical checks before approving the work or proceeding to the next construction stage.

✓20 Inspection Points
✓5 Verification Categories
✓Measuring & Strip Layout Planning+
  • Actual roll width confirmed with the supplier before any quantity is worked out
  • Pile direction decided for the whole lawn, and every strip planned to run that way
  • Every area measured to its widest point in each direction, not its average
  • Irregular and L-shaped areas broken into rectangles, each entered as its own row
✓Excavation & Sub-base+
  • Excavation depth set as the FULL build-up, so the finished turf sits flush with adjoining surfaces
  • Subgrade cleared of organic material, roots and soft spots, then compacted before any aggregate goes down
  • Base compacted in lifts of 1-2 in with a plate compactor, not dumped and compacted in one pass
  • Aggregate ordered as LOOSE volume, worked out by dividing by what compaction leaves, not multiplying by what it removes
  • Angular crushed aggregate with fines used, never rounded pea gravel
  • Fall and drainage confirmed — the base shaped to shed water, and a drain added if there is nowhere for it to go
✓Laying & Seaming+
  • Turf rolled out and left to relax in the sun before any cutting or seaming
  • Factory selvedge trimmed off both edges to be seamed, cutting between stitch rows from the back
  • Seamed edges butted with a consistent hairline gap, never forced tight and never left open
  • Seam tape centred under the joint, shiny side down, and the adhesive given its full cure before traffic
✓Infill & Fixing Down+
  • Perimeter fastened at close centres — the edge is where turf lifts
  • Infill rate taken from the turf manufacturer's figure for that specific pile height, not a generic rule
  • Infill applied in two or three passes with brushing between, not dumped in one go
  • Over concrete, decking or a balcony, the turf BONDED rather than fastened, and the surface prepared for it
✓Drainage, Safety & Aftercare+
  • Drainage tested with water before the job is signed off
  • For play areas, fall-height protection verified against the equipment — not assumed from the turf
Full QC Checklist+

Verify how the lawn was measured and the strips planned, excavation and sub-base preparation, laying and seaming the turf, infill and fixing down, and drainage, safety and aftercare.

✓35 Inspection Points
✓5 Verification Categories
✓Measuring & Strip Layout Planning+
  • Actual roll width confirmed with the supplier before any quantity is worked out
  • Pile direction decided for the whole lawn, and every strip planned to run that way
  • Every area measured to its widest point in each direction, not its average
  • Irregular and L-shaped areas broken into rectangles, each entered as its own row
  • Both running directions compared before the layout is fixed
  • Checked whether the lawn sits just over a whole roll width, while the design can still change
  • Trees, manholes, service runs, posts and beds identified and allowed for in the cutting allowance
✓Excavation & Sub-base+
  • Excavation depth set as the FULL build-up, so the finished turf sits flush with adjoining surfaces
  • Subgrade cleared of organic material, roots and soft spots, then compacted before any aggregate goes down
  • Base compacted in lifts of 1-2 in with a plate compactor, not dumped and compacted in one pass
  • Aggregate ordered as LOOSE volume, worked out by dividing by what compaction leaves, not multiplying by what it removes
  • Angular crushed aggregate with fines used, never rounded pea gravel
  • Fall and drainage confirmed — the base shaped to shed water, and a drain added if there is nowhere for it to go
  • Fine levelling course screeded and rolled to a true surface before the turf goes on
  • Weed membrane strips lapped, not butted, and the overlap allowed for in the quantity
✓Laying & Seaming+
  • Turf rolled out and left to relax in the sun before any cutting or seaming
  • Factory selvedge trimmed off both edges to be seamed, cutting between stitch rows from the back
  • Seamed edges butted with a consistent hairline gap, never forced tight and never left open
  • Seam tape centred under the joint, shiny side down, and the adhesive given its full cure before traffic
  • Seams positioned away from main traffic lines and prominent sightlines where the layout allows
  • Turf stretched out flat and wrinkle-free before it is fixed at the perimeter
✓Infill & Fixing Down+
  • Perimeter fastened at close centres — the edge is where turf lifts
  • Infill rate taken from the turf manufacturer's figure for that specific pile height, not a generic rule
  • Infill applied in two or three passes with brushing between, not dumped in one go
  • For pet areas, an odour-controlling infill specified rather than plain sand
  • Over concrete, decking or a balcony, the turf BONDED rather than fastened, and the surface prepared for it
  • Perimeter edge restrained by edging, a trenched board or an existing hard edge
  • Every fastener driven flush and its head hidden in the pile
✓Drainage, Safety & Aftercare+
  • Drainage tested with water before the job is signed off
  • For play areas, fall-height protection verified against the equipment — not assumed from the turf
  • Surface temperature considered for the exposure, and shade or a cooling infill planned where it matters
  • Manufacturer's warranty conditions read and the installation built to meet them
  • All rolls checked as the same batch, or any batch change placed where it will not show
  • Maintenance routine understood — brushing, debris removal and topping up infill
  • Usable offcuts kept, labelled with their pile direction
Inspection Notes+
Use the latest approved drawings, specifications, and site measurements.
Complete all critical checks before proceeding to the next work stage.
Record deviations and confirm rectification where required.

Related Calculators & Guides

Artificial Grass / Synthetic Turf Calculator CalculatorOpen the related calculator and verify the current project inputs.

FAQ

Use it after collecting the project inputs and again before approving or closing the relevant work stage.
No. It supports verification but does not replace approved drawings, specifications, codes, manufacturer requirements, or professional inspection.