Building a DIY Fire Pit: In-Ground and Above-Ground Designs

Fire pits add warmth and ambiance to any backyard. Before building, check local codes—some urban areas restrict open flames. Choose a flat, well-drained site away from structures, overhanging trees, and utility lines (call 811 for marking). Consider wind patterns to avoid smoke drifting into the house.

Choosing Materials

Select stone or concrete pavers rated for high heat. Standard pavers can crack or explode when heated. Fire-rated materials withstand prolonged temperatures safely.

Build Your DIY Fire Pit

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Below-Ground Fire Pit (3-ft diameter)

Mark a circle with landscaper's spray paint or a hose. Excavate 12 inches deep. Add 6 inches of pea gravel for drainage, tamp lightly, then cover with several inches of sand for leveling. Dry-stack fire-rated pavers or stones around the perimeter—no mortar, as heat will degrade it. Build walls 6 inches above grade. This design shelters the fire from wind.

Above-Ground Fire Pit with Insert

On an existing paver patio, remove a circular section of pavers and dig 6 inches down. Compact a sand base. Lay the first course of stackable wall blocks (avoid retaining-wall blocks with lips), checking level constantly. Stagger joints on each course for strength. Use concrete-rated adhesive between courses. After four courses, drop in a metal fire ring insert—its weight holds it in place.

Final Thoughts

For a simpler, cheaper option, consider a portable fire bowl on legs. But a well-built permanent pit adds lasting value and can be enjoyed for decades with minimal upkeep.