A DIY brick barbecue can stand out as a focal point in your yard. Whether you choose to use specialised pavers, red brick or concrete bricks, your barbecue will have a look all its own. When designing a brick barbecue, make sure you have a solid foundation, mortared joints and a firebox located inside the perimeter of the barbecue housing.
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Things you need
- 1-by-6-inch boards
- Circular saw
- Steel grating
Dig a hole that measures 4-by-4 feet. Make the hole 4 inches deep. Use a shovel to dig the hole and a rake to level the ground inside the hole.
Cut 4 pieces of 1-by-6-inch wood into 4 foot lengths with a circular saw and line the 4-by-4-foot hole with the boards. This creates a nice concrete form.
Pour in 3 inches of cement, place 3 ½-inch rebar in the cement approximately 12 inches away from each other. This stiffens the concrete slab. Pour 3 more inches of concrete over the rebar. Create a ½ inch downward slope from back to front with your trowel to ensure proper water runoff. Allow at least 48 hours for the concrete to dry. Remove the wooden boards.
Spray the bricks with water approximately 24 hours before you plan to install them. This prevents the bricks from sucking the moisture out of the mortar before it has a chance to set.
Place a row of bricks called a "course" around the perimeter of the concrete foundation. Do not place any mortar between the first course of bricks and the concrete foundation. Measure in approximately 1 foot from the first course of bricks and lay a second course. This is the firebox which is the area where you will place your wood or charcoal.
Draw a line around each course of bricks to outline your positioning and then remove the bricks and place them off to the side.
Place a ½ inch layer of mortar between the lines and then place both courses of bricks in place. Place a ½ inch layer of mortar between each brick to achieve the appropriate grout spacing. Place a level on the top of the bricks and tap on each brick until the bricks are level. Add additional layers of mortar and brick until the wall around the outside diameter measures approximately 30 inches high. Stop adding courses of brick to the firebox when it reaches 24 inches high.
Place a ½ inch layer of mortar on top of the perimeter wall and place evenly spaced rebar across the perimeter wall from front to back. Press the rebar into the mortar until it rests against the brick. Place one final course of bricks around the perimeter. Allow 48 hours for the mortar to dry.
Place steel grating over the rebar.
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