How to Build a Stone Outdoor Grill


A backyard grill helps create a focal point in your yard and is a perfect if you enjoy food cooked outdoors. Building your own stone outdoor grill is a great way to add space to entertain, providing you with a relaxing location to sit outside. It does take a good deal of planning and hard work to build your own grill, but it can be done. It is probably best to start out with a simple design.

Things You'll Need

  • Spray paint
  • 2-by-4 board
  • Tape measure
  • Shovel
  • Pea gravel
  • Sand
  • Tamp
  • Garden hose
  • Mortar
  • Rubber mallet
  • Trowel
  • Stones
  • Mark off the area where you would like to build your outdoor stone grill. Measure the size with a tape measure -- a typical size is 4 feet by 6 feet. Use a can of spray paint and a 2-by-4 to make the lines straight.

  • Dig down approximately 24 inches into the ground at the site that you marked. Fill the hole with pea gravel or sand. Mix in large stones and pour more sand. Add small stones and tamp down the sand to keep it level. Hose down the sand to help pack it down and fill the crevices. It should be about 6 inches below the top of the hole.

  • Place a level on the sand to make sure you have a level surface.

  • Put 3 inches of concrete in the hole. Place quarter-inch rebar horizontally on top of the concrete and fill the hole to the top with concrete. Slide a 2-by-4 board across the top of the concrete to ensure that it is level.

  • Place burlap bags that have been soaked in water on top of the concrete. Let the concrete cure for 48 hours.

  • Mix the mortar so that it is ready for your first layer of bricks.

  • Put down a layer of mortar and place your first layer of stones around the inside perimeter of the area that you have prepared.

  • Spread mortar on the bottom of each stone for the next layer. Tap the stone lightly with a rubber mallet or the handle of the trowel. Lay the second layer just like the first. Stagger the stones so that you avoid having vertical seams, which can weaken the wall.

  • Create a natural vent in your third row by placing every fourth or fifth stone with a 4-inch gap between it and the next one.

  • Continue laying stones until you reach the desired height. Place the grill on top of the structure.

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