Deciding to build a barbecue pit opens the world of backyard parties, al fresco dining and family activities. Building a pit out of brick requires that you have a knowledge of masonry because the barbecue pit must have a foundation. Once the foundation has been created, you can use multiple layers of bricks to built the pit.
Step 1: Dig Pit
First you are going to want to dig a pit that is rectangular in shape and at least 8 inches in depth with 40 inches in length and 56 inches in width. Measure the area and clear it completely. Make sure after you dig the pit that the area is properly level, using a hand-tamp tool for this process.
Step 2: Lay Gravel
Using dry mortar that has been mixed with water, lay down a bed of gravel that is approximately 2 inches in depth inside the pit. Spread it out with using a trowel. Spread out a layer thick enough cover the gravel. The mortar should extend approximately 2 inches inward from the pit's edges. While the mortar is still wet smooth down the entire area.
Step 3: Cinder Blocks
Now that the mortar has been smoothed down properly, place the flat cinder blocks down along the pit's edges on top of the mortar, making sure that each individual block is properly leveled. Fill the entire hole between these blocks using dirt, but only after the mortar has properly and completely dried.
Step 4: Lay Bricks
Now spread another layer of smooth mortar, this time covering the cinder blocks. Lay out a layer of bricks horizontally over the edges of the pit. Apply mortar to the edges of the bricks, completely surrounding the perimeter of the pit. The layer of bricks should be three bricks wide. Then apply another layer of mortar and more bricks with an alternating pattern.
Step 5: Metal Braces Insertion
Insert your metal braces next time you layer down mortar as the braces will point toward the center of the pit. The final layer of bricks should be put on top of the second layer of bricks and everything should be left to dry overnight. The metal grill bars can be placed in the center of the pit on the metal braces once the drying has completed.