Step 6: Score the Corner Pieces

hand scoring the corner pieces of stone used to create a stone veneer surround
Photo: Wendell T. Webber
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This is the first of two steps for cutting the stones to size. Measure the depth of the fireplace opening on the top and sides, making sure to leave enough clearance all around to remove the doors or screen if necessary once the stones are in place. Mark the measurements on the corresponding corner pieces, starting at the inner corner of each stone's back side. Using a grinder, score the back sides to a depth of about half their thickness. Then measure the depth of the fireplace's sidewalls, and mark and score the remaining corner pieces in the same manner.
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    Tools List

    • studfinder
      Stud finder
    • staple gun
      Staple gun
    • hammer
      Hammer
    • flat finishing trowel
      Finishing trowel
    • notched trowel
      Tiling trowel with 3/8-inch notch
    • angle grinder
      Grinder fitted with a diamond masonry blade
    • brick trowel
      Brick trowel
    • brick hammer
      Brick hammer
    • grout sponge
      Grout sponge or spray bottle
    • grout bag
      Grout bag
    • masonry striking tool
      Masonry striking tool
    • Whisk Broom
      Whisk broom

    Shopping List

    1. Stone veneer. Get about 20 percent more than you need to cover your fireplace, to accommodate fit and breakage.

    2. Builder's felt. It acts as a moisture barrier between the mortar and your walls to prevent water damage.

    3. Metal lath to install over the felt. It keeps the mortar in place, creating a base for the stone veneer.

    4. 3/8- or ½-inch staples.

    5. 15/8 -inch galvanized roofing nails.6. Veneer mortar. It contains special additives to create a strong bond between the stone veneer and the surface to which it's attached.

    7. Plastic sheeting. Tape it to your walls, floor, and hearth to protect them while you work.

    8. Painter's tape.

    9. Old drop cloth (optional).