Cost guide

What an Outdoor Fireplace Costs in Murfreesboro

Most of an outdoor fireplace budget sits in three places you cannot see from the finished photo: the footing, the firebox and the chimney height. Here is how those move the number in Rutherford County.

First decide which of three things you are buying

The word fireplace covers products that are nowhere near each other in price. Sorting that out first saves a lot of confused quote comparison.

At the bottom sits a prefabricated metal firebox with a light surround. In the middle sits a modular kit, where a manufactured firebox and flue components get set on a slab and then faced in brick or stone. At the top sits a fully site built masonry fireplace, laid unit by unit with a firebrick firebox and a masonry flue.

All three end up looking similar in a backyard photo. They do not age the same way. A site built masonry fireplace is a permanent structure with a footing under it, and it is priced like one.

• Prefab metal unit with a veneer surround, the lowest cost path
• Modular kit firebox and flue, faced in brick or stone
• Full site built masonry with firebrick and a masonry flue
• Same finished look, very different structure and very different price

The footing is the line item nobody expects

A masonry fireplace is heavy. It needs its own reinforced footing, not the four inch patio slab already in the yard. Setting one on an existing patio pour is the single most common shortcut in this work, and it shows up later as a leaning stack and cracked joints.

Rutherford County soil complicates it. Clay shrinks in a dry August and swells through a wet spring, and that movement is real enough to tilt a poorly supported structure. Elsewhere on the same lot you can hit limestone a foot down, because Middle Tennessee bedrock sits shallow and unevenly. Both conditions get found by digging, not by guessing.

So the excavation and footing number is not fixed until someone opens the ground. Ask for the rock terms up front, meaning what depth the price covers and what applies below it, because that single line is where backyard projects here run past budget. If the bid you are reading does not mention a footing at all, that is a question to ask before you compare it to anything else.

The firebox is where the money actually goes

The firebox is the part that has to survive repeated heating and cooling for decades. It is built from firebrick set in refractory mortar, not from the same face brick used on the outside, and the shape of the throat and smoke chamber above it determines whether the thing drafts or smokes your guests out.

That geometry is skilled work and it is slow work. A mason laying a proper smoke chamber is not laying a straight wall. This is the main reason a site built fireplace costs multiples of a kit, and it is also the reason a well built one still drafts thirty years on.

If you go the kit route, the tradeoff is honest. You get a factory engineered firebox and a predictable price, and you give up the ability to size the opening however you want.

• Firebrick and refractory mortar rather than face brick
• Throat, damper and smoke chamber shaped for draft
• Hearth extension in noncombustible material
• Clearances to any wood structure nearby, including a covered porch

Chimney height is a price multiplier

The stack above the firebox is priced by the course. Every foot of height is more brick, more mortar, more time and more scaffold. Height is not decoration either. A chimney too short for its opening will smoke, and one tucked beside a taller roofline gets pushed around by wind.

This is why a design sketched against a house wall costs more than the same fireplace standing free at the back of a lot. Sitting near the house means the stack has to clear the roof, and clearing a roof adds courses fast.

Ask for the planned height in writing. It is one of the few numbers that lets you compare two quotes directly, and a bid that leaves it out is leaving out real money.

Ranges you can plan around

Use this as a budgeting frame for a Middle Tennessee backyard, not as a price for your project. One published range covers the built in place version, and the lighter routes are set against it rather than given rates of their own, because no local figures for those two stand up to checking. Size, veneer choice, access and what turns up in the excavation move all of them.

Veneer selection swings the finish cost more than most homeowners expect. Manufactured stone, full bed natural stone, standard face brick and thin brick all install at different speeds, and labor is most of the difference.

• A prefab metal firebox with a light veneer surround, the lowest cost path on this list
• A modular kit faced in brick or stone, which sits between the prefab route and the built in place one, with veneer and stack height deciding where it lands
• A masonry fireplace built in place on its own footing: $8,000 to $20,000 and up installed, which is what this area runs
• Add a seating wall, wood box, grill surround or pizza oven and each is its own line
• Difficult access, hand carrying material through a narrow side yard, adds labor days

The hidden costs that surface later

Very few outdoor fireplace projects end at the fireplace. The structure changes how the space around it works, and the surrounding items usually arrive as change orders when they are not scoped up front.

The biggest of these is the patio. A fireplace needs a hearth area in front of it and room for chairs, and existing patios are often just short of that. Extending hardscape to suit the new focal point is frequently the second largest number on the whole project.

Gas is the other one. Running a gas line to a starter or to a full gas burning unit means a licensed trade, a trench, and a utility locate before anyone digs. Price it at the start or leave a stub for later.

• Patio or hardscape extension to give the fireplace usable room
• Gas line, permit and licensed installation if you want a starter
• Utility locate before any excavation, always
• Electrical if you want lighting or an outlet in a seating wall
• Wood storage, hearthside seating and finish caps
• Grading and drainage so water does not pond at the new base

Where to save and where not to

There is a clean rule here. Save on the parts you can change later. Do not save on the parts buried under masonry.

Veneer is changeable in principle, though nobody enjoys doing it. Size is negotiable. A smaller opening and a simpler cap cost less and often suit a normal backyard better than the oversized designs that circulate online. Those are fair places to trim.

The footing, the firebox and the flue are not. They are the reasons the structure stands straight, drafts correctly and does not become a demolition project in ten years. Trimming them buys a discount now and a rebuild later, and rebuilding always costs more than building once. Treat the range above as a starting frame either way. The number that counts comes out of a visit, once somebody has seen the yard, the access and what the ground is doing.

Related services: Brick Masonry · Stone Masonry