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How to Cap Bricks

Updated February 21, 2017

Capped brick gives brick walls and borders a finished, unified look. You may cap the whole length of the wall or choose to just cap the corners. Try flagstone or pieces of finished wood, or cap with brick to keep everything matching. As when laying brick, cap your brick on a clear day when no rain is forecast. Take the time to check that your work is level so the finished capped brick looks neat.

Measure your wall so you know how long it is.

Choose decorative bricks to cap your wall and give you the desired look. If you don't want to use decorative bricks, you can turn a masonry brick perpendicular to the wall, so the brick's short face faces out and the long face straddles the wall.

Buy enough cap stones or masonry bricks for your project, plus a couple extra in case one breaks.

Lay all the cap bricks on the wall for a test run. Leave 1/4-inch space for mortar between each brick.

Remove the bricks, placing them below the wall.

Mix your mortar with water to form a thick paste. Spread the mortar on the brick wall in an even layer. Check that it is level, then proceed.

Apply 1/4 inch of mortar to both sides of your brick or cap stone. Place the brick or stone on the bed or mortar so it sits on the side of the wall. Begin either at the left or right side of the wall.

Apply 1/4 inch of mortar to the left or right side of the next brick and place it against the first brick so it absorbs mortar. If you are working from left to right, leave the left side of the next brick plain but mortar the right side, for example.

Continue like this until you have worked your way down the wall to cap all bricks.

Let your mortar dry.

Tip

If your bricks do not fit, you can trim the edge of one brick to make it smaller. Hide the short brick four or five bricks from either end.

Things You'll Need

  • Measuring tape
  • Mortar
  • Trowel
  • Level
  • Cap stones or masonry bricks
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