How to Build an Outdoor Fireplace with Cinder Blocks: 1 Minute to Create Your Cozy Backyard GetawaySarah ThompsonMay 30, 2025Table of ContentsGather Your Materials:Choose the Right Location:Start with a Base:Build the Walls:Line the Firebox:Add Finishing Touches:Fire Safety:Enjoy Your New Outdoor Space!FAQTable of ContentsGather Your MaterialsChoose the Right LocationStart with a BaseBuild the WallsLine the FireboxAdd Finishing TouchesFire SafetyEnjoy Your New Outdoor Space!FAQFree Smart Home PlannerAI-Powered smart home design software 2025Home Design for FreeBuilding an outdoor fireplace with cinder blocks can transform your backyard into the ultimate gathering spot. Imagine cozy evenings with friends and family, basking in the warmth of a fire as you roast marshmallows and share stories. Sounds perfect, right? Let’s dive into how to make this dream a reality!Gather Your Materials:Before you start, you’ll need some essential materials. Here’s a list to help you:- Cinder blocks (enough for the desired height and width)- Firebricks if available (for lining the firebox)- Mortar or adhesive for securing blocks- A shovel for excavating the site- A level to ensure everything is straight- Safety gear including gloves and gogglesChoose the Right Location:The location of your outdoor fireplace is crucial. Look for a flat area that’s away from overhanging branches or structures. Consider the prevailing wind direction to ensure smoke doesn’t blow into your home. You want your guests to enjoy the fire without interruption.Start with a Base:Begin by marking a square outline for your fireplace’s base. Dig about 2-4 inches deep and lay a bed of sand or gravel to create a stable foundation. This will help with drainage and provide support for your cinder blocks.Build the Walls:Start laying your cinder blocks in a square shape, stacking them on top of each other. Use mortar between the blocks for stability. Be sure to use a level frequently to keep everything straight. If you want a more traditional fire pit appearance, consider adding an arch or a chimney as you stack!Line the Firebox:It’s important to use firebricks or heat-resistant tiles at the bottom of the firebox if your design includes an enclosed space for flames. These materials can withstand high temperatures and prevent damage to your cinder blocks.Add Finishing Touches:Once the structure is complete, you can go ahead and customize it! Think about adding a stone finish, decorative tiles, or even benches around it. These personalized touches will make your outdoor fireplace a centerpiece that everyone will admire.Fire Safety:Always keep safety in mind. A fire extinguisher or a bucket of water should be nearby when using your fireplace. Make sure to enjoy responsibly.Enjoy Your New Outdoor Space!Once your cinder block outdoor fireplace is up and running, it’s time to enjoy the benefits! Whether it’s a cozy dinner with family or a festive gathering with friends, you’ll have the perfect atmosphere.FAQQ: How long does it take to build an outdoor fireplace with cinder blocks?A: Depending on design complexity, it can take a few hours to a full weekend.Q: Can I use regular cinder blocks for the entire fireplace?A: Yes, but using firebricks in the firebox will improve safety and longevity.Home Design for FreePlease check with customer service before testing new feature.