How to make an outdoor concrete fire pit

This modern outdoor concrete fire pit is can be built over a single weekend and is great centerpiece for outdoor entertaining. This is not a difficult project but is time consuming and labor intensive. Concrete fireplaces and fire pits should be constructed carefully. When exposed directly to high amounts of heat the moisture trapped inside concrete can expand causing the concrete to crack and in extreme situations explode. I lined the inside of the fire pit with fire brick and filled the bottom with la