Choosing the right gas log set starts with one thing—accurate fireplace measurements. If your logs are too big, they won't fit. Too small, and they’ll look out of place. Don’t worry—measuring your firebox is easier than you think.
Follow this quick guide to get the perfect fit the first time.
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What You’ll Need
- Measuring tape (preferably metal)
- Flashlight or headlamp
- Paper and pen to jot things down
How to Measure Your Fireplace
Selecting the right size gas logs for your fireplace isn't just about aesthetics—it's essential for safety, efficiency, and proper operation. Follow this simple guide to ensure you get the perfect fit for your hearth.
This simple measuring process will help you choose the right size:
- Measure the front width of your fireplace
- Measure the width at the back of your fireplace
- Measure the depth from the front to the back of your fireplace
- Measure the height from the top to bottom of the front of your fireplace
- Measure the height from the top to bottom of the back of your fireplace
Whether you’re purchasing vented or vent-free gas logs, it’s critical to get the sizing right.
Common Fireplace Sizing Questions
Q: How much clearance do I need around the gas log set?
Most manufacturers recommend at least 2–6 inches of space on all sides of the burner pan. Always check the installation manual for specifics.
Q: What if I have glass doors?
Measure your firebox with the doors open. Some vented log sets require doors to remain open during use, so make sure your setup allows safe airflow.
Q: Can I measure from the outside?
Nope! Always measure inside the firebox itself—never the mantel, hearth, or exterior brickwork.
Still Not Sure?
Need help measuring?
We’re happy to double-check your numbers or walk you through it.
Call or text us at (734) 707-6589 or click here to message us.