How to Build a BBQ Island With Cinder Blocks

Cinder blocks are strong, heavy and fireproof building material units that can be stacked to make almost any structure desired. A cinder block barbecue island could be the centerpiece of a backyard patio and will provide a sturdy charcoal and preparation surface. By covering the exterior surface of the island with stone and slate, it will be weatherproof and eye-catching. All supplies needed, including the cinder blocks, can be found at building supply stores.

Close-up of texture and pattern of cinder block
credit: Jupiterimages/Photos.com/Getty Images
Cinder blocks make a strong, fireproof BBQ island.

Step 1

Carefully position three cinder blocks lengthwise on a level outdoor surface to create a 48-inch-long cinder block line.

Step 2

Position two cinder blocks lengthwise at a 45-degree angle to the ends of the block line, creating a U shape.

Step 3

Center one cinder block lengthwise in the center of the U, creating two connected U shapes.

Step 4

Mix five parts of sand with one part of cement in the wheelbarrow with the trowel. Add enough water to the mix to create a mortar that is the consistency of oatmeal. Add five layers of cinder blocks to the original shape, connecting the blocks with mortar.

Step 5

Use the trowel to apply the mortar to the outside vertical surfaces of the cinder blocks, and press the pea pebbles into the motor.

Step 6

Cover one open U-shaped top area of the completed barbecue with the charcoal tray. Cover the remaining U-shaped open area with the slate.