Place the galvanized pipe about two inches into the ground, otherwise too much air gets underneath and burns too quickly. Between 97 and 107 interlocking bricks go around the pipe. A friend of ours used river rock and cement. It looks so beautiful, but needs constant repair as the extremes in temperature cause cracking. No problem with the interlocking bricks.
We enjoy our fire pit almost year round. It's a favorite gathering place.
"Do not let any unwholesome talk come out of your mouth, but only what is helpful for building others up, according to their needs; that it may benefit those who listen." Ephesians 4:29