STEP 4 STRIPS: Fasten Turf
Make any final adjustments and depending on use and traffic patterns, it is recommended to use 5" or 6" spiral nails and fasten every 12" inches along the perimeter edges 1" in from the outside edge. Careful not to drive the nails too deep (not past flush) which can leave a depression and pull on the turf. Additionally, 20D or 16D common framing nails can be added internally every 6" centered along every grid section paver for 3" wide turf strips. If using 4" or wider strips then you can nail both sides 1" in from each edge, if needed. When nailing, be sure to spread the turf away from the nail head so it doesn't trap any fibers. Fluff or brush up the fibers around to cover the nail head, which should disappear.
Nailing around the pavers will help to secure the turf down and will help keep the turf edges from lifting up when brooming infill sand and preventing patches of sand in-between the edge of the turf strip and paver edge.