Denver Fire Pit Rules Rules (2026) — What You Need to Know
Some RestrictionsKey Facts
- Max Pit Size
- 3 feet diameter
- Structure Setback
- 15 feet
- Approved Containers
- Manufactured pit or masonry structure
- Air Quality Days
- No wood fires on High Pollution days
- Gas Fire Pits
- Exempt from air quality restrictions
The Short Version
Denver allows recreational fire pits under specific conditions. Your fire must be in a manufactured fire pit or a masonry/stone structure — digging a hole in the ground doesn't count. The pit can't exceed 3 feet wide and must be 15 feet from any structure. Fires are only allowed when Denver's Air Pollution Control Division hasn't declared a High Pollution Advisory day, which happens frequently in winter due to inversions. Gas fire pits are exempt from air quality restrictions. The Denver Fire Department responds to open burning complaints and can order any fire extinguished.
Full Breakdown
Denver's fire pit rules follow the International Fire Code with local amendments. Recreational fires must be contained in a manufactured fire pit or permanent masonry structure — no open ground fires. The 3-foot diameter and 15-foot setback from structures, fences, and vegetation are standard.
Denver's air quality situation adds a unique twist. The city's Front Range location means winter temperature inversions can trap pollution at ground level. When the Air Pollution Control Division declares a High Pollution Advisory (typically 10-20 days per winter), all wood-burning fires are banned — including fire pits. Check the Denver Air Quality Index before lighting up between November and March.
The fuel rules are strict: clean, dry firewood and manufactured logs only. Burning trash, construction debris, painted wood, or yard waste is prohibited year-round and carries both fire code and air quality penalties. The fire department also has authority to order any fire extinguished during red flag weather warnings when wind speeds make open flames dangerous.
What Happens If You Violate This?
Fire code violations carry fines of $150-$500. Burning on a High Pollution Advisory day adds an air quality violation of up to $300. Burning prohibited materials can result in fines from both the fire department and the Air Pollution Control Division.
Frequently Asked Questions
How do I know if it's a High Pollution Advisory day in Denver?
Can I use a chiminea on my Denver patio?
Are campfire-style fires legal in Denver backyards?
How does Denver compare?
See how Denver's fire pit rules rules stack up against other locations.