How To Build A Below Ground Fire Pit

I chose to use a four section concrete design with rebar. 1) Weight and the logistics of setting the sections - each section weighs aprox. 150lbs, 2) Less cracking as the sections cure.




It was recommended I use a 5000 psi fire resistant concrete. I poured the sections dry with the minimal amount of water, as concrete losses strength as water content increases.





The finished sections in place (no easy task!), ready for the rock surround.