Build A Outdoor Fireplace With Cinder Block

Build an Outdoor Fireplace with Cinder Blocks: A Step-by-Step Guide

An outdoor fireplace is a versatile addition to any backyard, providing warmth and ambiance on chilly evenings. Building one with cinder blocks is a cost-effective and straightforward project that can be completed in a few weekends.

Materials You'll Need:

Cinder blocks
Mortar mix
Firebricks
Concrete adhesive
Steel reinforcing rods
Pavers or stone for the hearth

Step-by-Step Instructions:

Step 1: Prepare the Base

Clear a level area for the fireplace and dig a hole for the foundation. Fill the hole with gravel and compact it. Place a layer of cinder blocks around the perimeter to form the base.

Step 2: Build the Firebox

Use cinder blocks to build the firebox, lining it with firebricks to withstand the heat. Use mortar mix to secure the bricks and blocks. Install a steel reinforcing rod at the top of the firebox for added support.

Step 3: Create the Mantel

Build the mantel by stacking cinder blocks horizontally on top of the firebox. Use concrete adhesive to secure the blocks. Add decorative details or shelves as desired.

Step 4: Install the Hearth

Spread concrete adhesive on top of the base and lay down pavers or stone to create the hearth. Slope the hearth slightly away from the firebox to prevent water from pooling.

Step 5: Finishing Touches

Cap the fireplace with a concrete cap or a metal chimney to improve smoke ventilation. Add a spark guard or screen for safety. Enjoy your new outdoor fireplace!