How to Build a DIY Fire Pit in Your Backyard (Weekend Project)

A backyard fire pit is one of the highest-impact yard upgrades you can do in a single weekend. It creates a gathering spot, extends your outdoor season into cooler months, and costs a fraction of what a contractor would charge.

Before You Start

Check Local Regulations

Most municipalities have rules about open fires. Check your local fire code for:

  • Minimum distance from structures (usually 10–25 feet)
  • Size limits (many cap at 3 feet diameter)
  • Fuel restrictions (some areas ban wood fires)
  • Permit requirements

Choose Your Location

  • At least 10 feet from any structure, fence, or overhang
  • Away from low-hanging branches and dry vegetation
  • On level ground — you’ll be glad you took time to level the base
  • Downwind from your usual seating area (check prevailing wind direction)

Materials You’ll Need

For a basic 36-inch stone fire pit:

  • 36 retaining wall blocks (approximately $3–5 each)
  • Gravel for the base (about 4 bags of pea gravel)
  • Fire-rated adhesive (landscape block adhesive)
  • Sand for leveling

Total cost: $120–$200

Browse fire pit block kits on Amazon

Step-by-Step Build

Step 1: Mark Your Circle

Use a stake, string, and spray paint to mark a circle about 44 inches in diameter (the outer edge of your blocks). This gives you a roughly 36-inch interior opening.

Step 2: Dig the Base

Excavate 6 inches deep within your circle using a shovel or post hole digger. This creates a stable base and keeps the fire pit low-profile.

Step 3: Add a Gravel Base

Pour 3–4 inches of gravel into the hole and tamp it flat. This provides drainage and a stable foundation.

Step 4: Lay the First Course

Set your first ring of blocks on the gravel, checking level as you go. This is the most important ring — take your time.

Step 5: Stack Additional Courses

Apply landscape adhesive between courses and stack 2–3 more rings. Offset the joints like brickwork for stability.

Step 6: Add Interior Gravel

Pour 2 inches of pea gravel inside the pit for drainage and to create a base for your fire.

Step 7: Let It Cure

Give the adhesive 24 hours to set before lighting your first fire.

Fire Pit Accessories

Once you’ve built the pit, add these for a better experience:

  • Fire pit grate — Elevates wood for better airflow and cleaner burns
  • Spark screen — Keeps embers contained
  • Fire pit cover — Protects from rain when not in use
  • Firewood rack — Keeps wood dry and organized nearby

Browse fire pit accessories on Amazon

Safety Reminders

  • Keep a garden hose or fire extinguisher nearby
  • Never use gasoline or lighter fluid to start a fire pit fire
  • Fully extinguish fires before leaving — drown, stir, and drown again
  • Don’t burn treated lumber, trash, or yard waste (check local rules)

Planning more backyard projects? LifeStarter has new homeowner checklists and budget tools to help you prioritize upgrades.

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