Step 12: Fill the Gaps

filling gaps with trimmed cobblestones at the edge of a driveway apron
Photo: Kolin Smith
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Continue cutting and fitting cobbles along the sides of the apron as needed. Be sure to leave enough space for a grout line on all sides.
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    More in Exterior

    Tools List

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    • 30-foot tape measure
      tape measure
    • finish nails, various lengths
      nails to stake the chalk line in asphalt
    • chalk line
      chalk line
    • safety glasses
      safety glasses
    • ear muffs
      hearing protection
    • concrete saw
      14-inch gas-powered concrete saw with segmented diamond blade
    • garden hose
      garden hose
    • hammer drill
      hammer drill with chisel bit to break up the driveway surface
    • cutter mattock
      pick mattock to remove broken-up chunks
    • gloves
      work gloves for handling asphalt and cobbles
    • garden stakes
      stakes
    • mason's line
      mason's line
    • iron rake
      bow rake
    • plate compactor
      plate compactor to tamp base and pavers
    • side-cutting pliers
      side-cutting pliers
    • chalk
      chalk stick
    • mason's chisel with hand guard
      mason's chisel with hand guard
    • sledge hammer
      hand sledge
    • brick hammer
      brick hammer
    • tamper
      hand tamper to fix uneven spots during installation
    • duct tape
      duct tape
    • concrete mixer
      cement mixer
    • Squeegee
      double-foam squeegee to spread grout into joints
    • push broom
      push broom to remove excess grout

    Shopping List

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    Cobblestone mats with cast-in grid
    Have your supplier help determine the amount you need.

    Permeable epoxy grout

    Leveling sand.
    A ½-cubic-foot bag covers 6 square feet at 1 inch deep.