How to Build a Fire Pit (DIY Guide, 2026)

Frequently Asked Questions

Do I need a permit to build a fire pit?

Usually yes. Most municipalities require permits for permanent fire features and restrict wood-burning pits to certain neighborhoods. Gas fire pits often need separate permits for the gas line. Check city/county building department, then HOA rules if applicable. Fines for unpermitted fire features run $250-$2,500.

Wood vs. gas fire pit — which is better?

Wood: cheaper ($150-$600 DIY), provides traditional crackle and smell, requires wood storage and cleanup, creates smoke and ash. Gas: more expensive ($400-$1,500 DIY or $2,000-$5,000 professionally installed), instant ignition, clean burning, requires gas line. Gas wins for patio integration and frequent use; wood wins for budget and ambiance.

How big should a backyard fire pit be?

The interior should be 28-40 inches wide for home use. That accommodates a reasonable fire and fits in most backyards. The exterior (with the wall) will be 36-48 inches. Bigger pits require more fuel, generate more heat (uncomfortable in warm weather), and don't fit typical seating arrangements.

What's the cheapest way to build a fire pit?

A retaining wall block fire pit ring costs $80-$200 in materials. Dig a 12-18 inch hole, lay gravel, stack 2-3 rings of retaining wall blocks in a circle, fill with lava rock or sand. Skip mortar — dry stacking works fine for decorative fire pits.

How far from the house should a fire pit be?

Minimum 10 feet from any structure (house, shed, fence) per most codes. 15-25 feet is safer and more common. Even further from overhead tree canopies. Never put a fire pit on a wooden deck unless using a purpose-built deck-safe unit with a burn pad.

Can I put a fire pit on concrete or pavers?

Yes — concrete and pavers tolerate heat well. Pavers may discolor from direct flame. For wood pits, elevate with a metal ring or pad 4-6 inches above the surface. For gas pits, the included burner pan typically protects the base material.

A backyard fire pit is one of the best returns on investment for a weekend project. $300 in materials and 8 hours of work turns a plain lawn into a gathering space that raises property value and extends outdoor season by months. This guide covers a basic paver pit, a stacked-stone build, and gas conversion.

Which Type of Fire Pit to Build

Paver / Retaining Wall Block — $150-$400

Most common DIY. Curved retaining wall blocks designed for fire pit rings stack easily without mortar.

Best for: Beginners. Simple to modify or remove.

Stacked Natural Stone — $300-$800

Boulders, flagstone, or dimensional stone stacked with mortar. Harder to build but looks best.

Best for: Intermediate DIYers, yards with natural stone landscaping.

Brick (Mortared) — $200-$500

Permanent, traditional look. Requires firebrick for the interior and masonry cement throughout.

Best for: Experienced DIYers, formal patios.

Prefab Steel Fire Ring — $50-$250

A steel ring that you bury partially in the ground. Simplest option, lasts 5-10 years before rusting.

Best for: Temporary use, renters, remote yards.

Gas Fire Pit Kit — $400-$1,500 DIY

A manufactured burner and pan that you surround with a masonry or paver enclosure. Gas line not included.

Best for: Patios, frequent entertaining, smoke-averse households.

Codes and Permits

Check Before You Dig

Call 811 at least 3 business days before any excavation. Free service, identifies buried utilities. Hitting a gas line is catastrophic.

Common Code Requirements

• Distance from structures: 10-25 feet minimum
• Distance from property lines: 5-15 feet minimum
• Distance from trees: 25+ feet from overhanging branches
• Maximum pit size: Often 3 feet in diameter for home use
• Fuel restrictions: Some cities prohibit wood burning entirely
• Spark arrester / screen: Often required for wood pits

HOA Rules

Beyond city code, HOAs often have additional rules:

• Only gas pits allowed
• Architectural review approval needed
• Minimum distance from fences/patios

Check your HOA docs first. Fines for violation can exceed project cost.

Tools and Materials

Tools

• Round-Point Shovel ($20-$40)
• Hand Tamper or Plate Compactor ($25-$80 for tamper; $100/day rental for plate compactor)
• 4-Foot Level ($30-$60)
• Rubber Mallet ($10-$20)
• Tape Measure ($10-$20)
• String Line ($5-$15)
• Marking Paint ($5-$10)
• Safety Glasses ($10-$20)
• Work Gloves ($15-$25)

Materials for a 36-Inch Paver Fire Pit

Item	Qty	Cost
Fire pit blocks (retaining wall)	36 pieces (3 rings of 12)	$100-$250
Compactable gravel (3/4 minus)	2-3 bags (50 lb)	$15-$30
Paver base sand	1 bag (50 lb)	$10-$15
Masonry adhesive	1 tube	$8-$12
Steel fire ring insert (optional)	1	$30-$80
Lava rock or sand (bottom)	1 bag (25 lb)	$20-$40
Total Materials		$183-$427

Materials for Gas Fire Pit Kit

Item	Cost
Gas burner + pan kit	$250-$800
Lava rock or fire glass	$40-$150
Hidden propane tank cover	$80-$200
Key valve + shutoff	$40-$80
Gas flex line (if permanent gas)	$30-$80
Enclosure materials (same as wood)	$150-$400

Step 1: Choose the Location

Critical Factors

• Level ground. A sloped site requires retaining walls and drainage solutions.
• Wind direction. Prevailing wind should blow smoke AWAY from house, deck, and neighbor yards.
• View. You’ll sit looking at the pit — pick a spot that works with the landscape.
• Utility lines. Call 811. Never build over buried gas, electric, or water lines.
• Tree canopies. Embers travel. No canopy within 25 feet.

Measure Distances

Use a tape measure:

• 10+ feet from house (check local code for exact requirement)
• 15+ feet from fence (if wood)
• 10+ feet from deck or patio edge
• Check any HOA setback requirements

Step 2: Mark the Pit

Find the Center

Drive a stake in the ground at the pit’s center.

Mark the Outside Edge

Tie a string to the stake:

• For a 36-inch outer diameter pit: 18-inch string
• For a 48-inch outer diameter pit: 24-inch string

Walk the string around the stake, spraying marking paint as you go. You now have a perfect circle.

Mark an Extra Inch

Add 1-2 inches outside the painted line — you’ll need space to work.

Step 3: Excavate

Dig to Depth

• Paver pit: 6-12 inches
• Stone mortared pit: 8-14 inches
• Gas pit: 6-10 inches plus gas line trench if permanent

Keep It Flat

Use a level to check the bottom. High spots create uneven walls.

Tamp the Soil

A hand tamper or plate compactor packs the soil firm. 5-10 passes is enough. This prevents settling that causes blocks to shift.

Step 4: Build the Base

Add Gravel

• 4-6 inches of compactable gravel
• Tamp flat
• Check level across diameter

Add Sand

• 1 inch of paver base sand
• Level with a rake or screed board
• Tamp lightly

The sand layer provides the final leveling surface for the first ring.

Step 5: Lay the First Ring

Place Blocks in a Circle

• Set blocks touching each other
• Small gaps are OK and close as the wall rises
• Tap each block level with a rubber mallet

Check Level

• Use a 4-foot level across the ring
• Also check across the diameter (each block to the opposite block)
• Adjust by removing blocks and adding or removing sand

Check Round

Measure diameter in several directions. If off by more than 1/2 inch, shift blocks until round.

Step 6: Build the Wall

Stack Successive Rings

• Offset joints — each block spans the joint of two blocks below (like brick)
• Check level every row
• Clean any sand or debris from the top of each row before placing the next

Optional: Masonry Adhesive

For stability, run a bead of landscape-rated masonry adhesive between courses. Essential on tall pits (3+ rings), optional on 2-ring pits.

Typical Wall Height

2-3 rings is standard (12-20 inches tall). Taller walls insulate better and provide better wind shelter but cost more.

Step 7: Line the Interior (Wood Pits)

Why Liner Matters

Direct flame on retaining wall blocks or concrete pavers causes cracking and spalling over time. A steel ring insert protects.

Steel Fire Ring

• 24-36 inch diameter steel ring
• Sets inside the stone wall
• 10-14 inches tall
• Creates an air gap that preserves blocks

Steel Fire Ring Insert — $30-$80.

Firebrick Alternative

For permanent stone pits, line interior walls with firebrick mortared with refractory cement. More expensive but lasts decades.

Step 8: Fill the Bottom

Drainage and Insulation

• 2-4 inches of lava rock or pea gravel on the bottom
• Allows rain to drain
• Insulates ground from prolonged heat
• Easier to scoop ash

Lava Rock for Fire Pits — $20-$40 per bag.

Optional Ash Pan

Set a removable metal ash pan inside the fire ring. Makes cleanup easier.

Step 9: Build the Optional Cap

Capping Blocks

• Concrete wall caps or oversized top blocks give the pit a finished look
• Set them level, overhanging slightly (1-2 inches)
• Masonry adhesive secures them

Color-Matched Caps

Home Depot, Lowes, and landscape supply stores stock matching caps for most retaining wall block brands.

Converting to Gas Fire Pit

If Building from Scratch

Build the same paver enclosure but size it to fit the gas burner kit (usually 24” x 24” or round 24-36”).

Install the Burner

• Set the burner pan centered in the enclosure
• Connect gas line (flex or hard pipe)
• Test for leaks with soap-water solution before first use

Decorative Fill

• Lava rock (standard, cheap)
• Fire glass (reflective, stylish) — $40-$150
• Ceramic logs ($50-$200)

Gas Line Options

• Propane tank (easiest): hide in a cabinet next to pit. Refill as needed.
• Permanent gas line (best): connect to house natural gas. Requires a plumber and permit. $500-$1,500.

Propane Fire Pit Kit — $250-$800 for complete burner assembly.

Maintenance and Safety

After Each Use

• Allow ash to cool completely (24-48 hours)
• Dispose in metal ash container only
• Never dump hot ash in yard or regular trash

Weekly

• Remove ash if burning frequently
• Check for cracks in blocks or fire ring
• Confirm area around pit is clear

Seasonally

• Cover pit during heavy rain seasons
• Remove standing water that collects
• Inspect gas connections (gas pits)

Yearly

• Replace fire ring insert if rusted through
• Re-apply masonry adhesive where blocks have shifted
• Power wash stained pavers

Safety Gear

• Fire Pit Screen Cover — blocks sparks
• Fire Pit Poker Tool Set — safe manipulation of logs
• Weatherproof Fire Pit Cover — keeps it dry between uses
• Fire extinguisher nearby — $30-$60 for an ABC-rated 5-10 lb extinguisher

Common Mistakes

Building Too Big

A 48-inch pit is impressive at the hardware store. In your backyard, it dominates the space. Stick to 36-42 inch outer diameter for home use.

Skipping the Base

A few inches of gravel seems excessive. But without it, the pit shifts and blocks crack in 1-2 winters of freeze-thaw.

Using Regular Bricks

Regular clay or cement bricks crack under fire. Use firebrick for interior lining OR use a steel fire ring insert over regular pavers.

Building on a Wooden Deck

Fire pits on wooden decks cause deck fires. Either use a purpose-built elevated metal pit or build on concrete/stone surface.

Ignoring Drainage

Water pooling in the pit freezes in winter and cracks the base. Drainage gravel at bottom is essential.

No Permit

Unpermitted fire pits get cited. Fines and removal orders cost more than the permit.

Professional Install Cost

For reference, if you hire a landscaper:

• Basic paver fire pit installed: $1,000-$2,500
• Stone masonry fire pit installed: $2,500-$5,000
• Gas fire pit with gas line installed: $3,000-$8,000
• Custom designer fire pit with seating: $5,000-$15,000

DIY saves 60-80% of these costs.

Related Reading

• Deck Building Cost Per Square Foot — pair a fire pit with a deck
• How to Stain a Deck — deck prep around fire pits
• Garage Organization Ideas — store pit tools and firewood
• Spring Home Maintenance Checklist — outdoor season prep
• Best Portable Generators for Home Backup — outdoor power
• Annual Home Maintenance Schedule — year-round backyard calendar