1.

Surface Area
Use a notched float to apply mortar 1/2” to 3/4” thick.

2.

Joint Width
If mortared application is specified, joints should be 1/2” to get the most natural look.

3.

Setting Stones In Mortar
Cover the entire back of the stone with mortar and press the stone firmly into the mortar bed to ensure a good bond. Press hard enough to squeeze out a little mortar around all the edges of the stone. Make sure you have complete coverage between the mortar bed and the surface of the stone.

4.

Corner Pieces
Corner pieces should be installed first. Alternate the long and short legs on the corner pieces in opposite directions.

5.

Flat Pieces
After the corner pieces are installed apply flat pieces starting at the outside working in toward the wall center.

6.

Cutting and Trimming
Use the rear of the brick hammer, edge of trowel, nippers or a circular saw with an abrasive blade to cut and shape stones. If necessary, broken stones can be trimmed and shaped to fill in any gaps. For the most attractive finished appearance, coat with mortar any cut or broken edges. Also, try to place cut edges up when they are above eye level and down when they are below eye level.

7.

Level and Plumb Joint Lines
Joint lines should be level and plumb. For a more natural look, place long, rectangular pieces of stone horizontally.

8.

Weathered Edge, Stack Stone and Ledge Stone
In mortarless joint applications where no mortar joints are used, use a bonding agent and seal with a breathable (non-film-forming) sealer.