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trueflame|SKU:RTF-S42-var-87621-a1d0c6

TrueFlame 42" Square Ready-To-Finish Fire Pit Enclosure — Steel Frame for Outdoor Kitchen Islands

The Foundation Your Outdoor Kitchen Fire Feature Deserves

Elevate your outdoor living space with the TrueFlame Square Ready To Finish Fire Pit Enclosure, a premium foundation for a custom fire feature that exudes sophistication. Its clean, modern lines and generous 42-inch square design provide a versatile canvas to match your unique style, while the durable construction ensures lasting performance for years of memorable gatherings. This enclosure transforms your patio or backyard into a luxurious retreat, offering both effortless customization and enduring elegance.

Finish it your way — Tile, stone, or stucco over the steel frame — your design.
Built to outlast seasons — Heavy-gauge welded steel holds through freeze-thaw cycles.
42" square footprint — Serious fire feature presence without overwhelming your patio.
Ships complete, installs clean — No welding, no custom fabrication required on your end.
Investment that adds value — A permanent fire feature raises outdoor living appeal long-term.
  • FREE Shipping -- No freight surcharges — delivered to your door on orders $200+.
  • FREE Price Match -- Find it cheaper at any authorized dealer — we match it, no questions.
  • FREE Expert Consultation -- Talk to a real outdoor kitchen specialist before or after you buy.

Price range: $1,538.88 through $1,642.79

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TrueFlame Square Ready To Finish Fire Pit Enclosure - RTF-S42
TrueFlame Square Ready To Finish Fire Pit Enclosure - RTF-S42
$1,538.88 – $1,642.79Price range: $1,538.88 through $1,642.79

30-day money back · No restocking fee

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In the box

  • TrueFlame RTF-S42 Square Fire Pit Enclosure (steel frame)
  • Hardware pack
  • Assembly instructions
TrueFlame Square Ready To Finish Fire Pit Enclosure - RTF-S42
TrueFlame 42" Square Ready-To-Finish Fire Pit Enclosure — Steel Frame for Outdoor Kitchen Islands
$1,538.88 – $1,642.79Price range: $1,538.88 through $1,642.79

The Foundation Your Outdoor Kitchen Fire Feature Deserves

If you're building an outdoor kitchen and don't even know where to start with a fire pit, the RTF-S42 removes the guesswork. TrueFlame engineers this enclosure as a vetted steel frame ready to accept your choice of finish — natural stone, ceramic tile, brick, or stucco — so the final look is yours, not a catalog page. The 42" square footprint anchors any island layout without overwhelming a standard patio, and the 18" height puts flames at the ideal sightline from most outdoor seating. This is the structure serious builders spec first.

FREE SHIPPING $200+30-DAY RETURNSEXPERT SUPPORTPRICE MATCH GUARANTEEAUTHORIZED TRUEFLAME DEALERFREE SHIPPING $200+30-DAY RETURNSEXPERT SUPPORTPRICE MATCH GUARANTEEAUTHORIZED TRUEFLAME DEALERFREE SHIPPING $200+30-DAY RETURNSEXPERT SUPPORTPRICE MATCH GUARANTEEAUTHORIZED TRUEFLAME DEALERFREE SHIPPING $200+30-DAY RETURNSEXPERT SUPPORTPRICE MATCH GUARANTEEAUTHORIZED TRUEFLAME DEALERFREE SHIPPING $200+30-DAY RETURNSEXPERT SUPPORTPRICE MATCH GUARANTEEAUTHORIZED TRUEFLAME DEALERFREE SHIPPING $200+30-DAY RETURNSEXPERT SUPPORTPRICE MATCH GUARANTEEAUTHORIZED TRUEFLAME DEALER
Ready-to-finish frame
42" square footprint
30-day money-back
Free shipping $200+
42"
Square fire pit opening
18"
Optimized seating height
30
Day return guarantee
Finish It Your Way — Not the Big-Box Way

Finish It Your Way — Not the Big-Box Way

Big-box stores sell pre-finished fire pits that look like everyone else's patio. The TrueFlame RTF-S42 ships as a precision-welded steel frame so you choose the finish — stacked slate, tumbled travertine, painted stucco, or hand-laid brick. That's the Grill Island difference: we sell what we'd put in our own backyard, which means we only list enclosures built to hold a finish properly. The steel structure accepts standard masonry finishes without shimming or custom framing. Your design, your fire feature, built once to last a lifetime.

Steel Craftsmanship Built for Permanent Outdoor Installations

Steel Craftsmanship Built for Permanent Outdoor Installations

The RTF-S42 frame is fabricated from heavy-gauge steel with welded corners — not bolted sheet metal that loosens over time. That level of craftsmanship matters when you're setting a fire feature inside a poured-concrete outdoor kitchen surround. The enclosure maintains its square geometry through thermal expansion cycles, protecting your finish material from cracking at the joints after hard winters. Built for a permanent install, not a season. When your kids inherit the house, this fire pit frame will still be square.

Three Widths, One Island — Spec the Right Size Before You Pour

Three Widths, One Island — Spec the Right Size Before You Pour

A 42" square opening gives you a fire feature that reads as a true centerpiece. At 18" height it sits below standard bar-height seating, keeping flames visible from every chair without blocking conversation sightlines. The RTF-S series comes in three widths — 42", 48", and 60" — so you can scale precisely to your island layout. Pair it with any standard LP or natural gas fire pit insert. Grill Island's outdoor kitchen specialists can confirm insert compatibility before your order ships — call, chat, or email.

Will it fit your outdoor kitchen island?

The RTF-S42 is engineered for permanent outdoor kitchen integration. Confirm your rough-in opening before ordering — our specialists will review your layout dimensions at no charge.

  • Outer frame: 42" W x 42" D x 18" H
  • Rough-in opening in your island frame must meet or exceed 42" x 42"
  • Minimum 18" vertical clearance above frame recommended for most fire pit insert kits

Built for Every Outdoor Fire Feature Scenario

From the weekend entertainer to the serious outdoor kitchen builder, the RTF-S42 fits every application where a permanent fire feature belongs.

Built-in outdoor kitchen islands
Covered patio installations
Stone or masonry finish builds
Year-round entertaining spaces
Custom contractor fire pit projects

Full specifications

At a glance

Dimensions
42"
Surface
Ready-to-finish (tile, stone, stucco, brick)
Warranty
1-year manufacturer warranty
Full specifications14 data points across 4 categories

Dimensions

ModelRTF-S42
Outer Width42"
Outer Depth42"
Height18"
ShapeSquare
Available SizesRTF-S42 (42"), RTF-S48 (48"), RTF-S60 (60")

Power & Performance

Fire Pit TypeEnclosure only — burner sold separately
Fuel CompatibilityLP or NG (per selected insert)

Materials

Frame ConstructionHeavy-gauge welded steel
Surface FinishReady-to-finish (tile, stone, stucco, brick)
Outdoor RatedYes

Compliance & Warranty

Warranty1-year manufacturer warranty
US SupportYes — authorized TrueFlame dealer
SKURTF-S42

The Grill Island Promise

Every product on this site is something we'd put in our own outdoor kitchen. The TrueFlame RTF-S42 passed our vetting for steel quality, finish compatibility, and real-world permanent installation use.

Authorized DealerFull TrueFlame manufacturer warranty honored — no grey-market sourcing, ever.
30-Day GuaranteeSend it back within 30 days if it's not right — return freight on us.
Expert ReviewedOur team evaluates build quality and installation fit before we list any product.
★★★★★
“Built a full outdoor kitchen last summer and spec'd the RTF-S42 as the centerpiece. Finished it in stacked slate — looks like it belongs in a high-end resort. Rock-solid frame, not a single crack in the stone after one full Texas winter. Worth every dollar of the investment.”
M
Marcus T.Alpharetta, GA

TrueFlame Square Ready To Finish Fire Pit Enclosure – RTF-S42

Price: $1,538.88

Elevate your outdoor living space with the TrueFlame Square Ready To Finish Fire Pit Enclosure (RTF-S42), a premium foundation for a custom fire feature that combines elegance, durability, and versatility. Designed for discerning homeowners and professionals alike, this 42″ x 42″ x 18″ tall square enclosure provides a robust, ready-to-finish structure that allows you to personalize your fire pit with stone, stucco, tile, or other finishes. Built to withstand the elements and support a variety of fire pit inserts or burners, the RTF-S42 transforms your patio, garden, or backyard into a sophisticated gathering spot. Experience the perfect blend of form and function with this expertly crafted enclosure, designed to deliver lasting performance and timeless style.

Key Features

  • Versatile Size Options: Available in three square dimensions to suit your space: RTF-S42 (42″ W x 18″ H), RTF-S48 (48″ W x 18″ H), and RTF-S60 (60″ W x 18″ H). The RTF-S42 offers a compact yet generous footprint for intimate settings.
  • Ready to Finish Design: Pre-constructed enclosure allows for seamless customization with your choice of stone, brick, stucco, tile, or other cladding materials—perfect for matching your outdoor décor.
  • Premium Construction: Built with high-quality, weather-resistant materials engineered to support fire pit inserts, burners, and accessories while maintaining structural integrity in all seasons.
  • Simple Integration: Designed to accommodate standard fire pit components, making installation straightforward for DIY enthusiasts or professional contractors.
  • Elegant Square Profile: Clean, modern lines create a contemporary focal point that complements both traditional and modern outdoor designs.

Specifications

  • Model Number: RTF-S42
  • Dimensions: 42″ Width x 42″ Depth x 18″ Height
  • Shape: Square
  • Category: Enclosure
  • Available Models:
    • RTF-S42 – 42” W x 18” H
    • RTF-S48 – 48” W x 18” H
    • RTF-S60 – 60” W x 18” H
  • Finish: Ready to finish (unfinished exterior for customization)
  • Weight: Heavy-duty construction for lasting durability (exact weight available upon request)

Why Choose TrueFlame Square Ready To Finish Fire Pit Enclosure – RTF-S42

When investing in a fire feature, you deserve a foundation that offers both strength and style. The TrueFlame Square Ready To Finish Fire Pit Enclosure (RTF-S42) stands out because it provides a premium, pre-engineered structure that eliminates guesswork while giving you complete creative freedom. Unlike generic options, this enclosure is built with precision and quality materials to ensure long-term performance, even in harsh weather conditions. The 42″ square size is ideal for creating a cozy yet spacious fire pit that anchors your seating area without overwhelming the space. Plus, with the flexibility to choose your own finish, you can achieve a unique look that reflects your personal taste—whether you prefer a rustic stone facade or sleek modern stucco. Backed by TrueFlame’s reputation for excellence, the RTF-S42 is more than an enclosure; it’s the cornerstone of unforgettable outdoor moments. Choose the RTF-S42 for a fire pit that’s as durable as it is beautiful.

Additional information

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Frequently Asked Questions

This enclosure ships unassembled as a flat-pack kit. It requires assembly on-site, though no specialized tools are needed. The unit arrives without the fire pit burner or media; you supply those separately. Assembly time typically ranges from 30 to 60 minutes with two people.
The RTF-S42 is designed to accept a standard 42-inch square drop-in burner or fire pit pan. You must choose a burner that fits a 42” x 42” opening. The enclosure does not include a burner or ignition system, so compatibility depends on the dimensions of the insert you select.
The enclosure is constructed from heavy-duty steel and is designed to be finished with stucco, stone veneer, tile, or similar cladding. It comes as a “ready to finish” frame, meaning it is uncoated and requires your choice of exterior finish for weather protection and aesthetics.
After finishing the exterior, inspect the frame annually for rust or corrosion, especially if exposed to moisture. Clean the surface with mild soap and water. If the finish chips or cracks, repair promptly to prevent water damage. Do not use abrasive cleaners that could damage the cladding.
Returns are accepted within 30 days of delivery for items in new, unused condition. The enclosure must be returned in its original packaging. Customer is responsible for return shipping costs. Refunds are processed after inspection. Contact customer support to initiate a return.
This enclosure is ideal for DIY homeowners or contractors who want a custom-built look without pouring concrete. It suits those who plan to apply their own stone, tile, or stucco finish and integrate a separate burner system. Perfect for permanent outdoor kitchens or patio fire features.
Yes, the enclosure is compatible with both natural gas and propane burner systems, provided the burner pan fits the 42-inch square opening. You will need to purchase a compatible burner, ignition system, and gas line separately. Always follow local codes for gas line installation.
SKU: RTF-S42 Categories: , Brand:

The Grill Island Promise

Every product on this site is something we'd put in our own outdoor kitchen. The TrueFlame RTF-S42 passed our vetting for steel quality, finish compatibility, and real-world permanent installation use.

Authorized Dealer Full TrueFlame manufacturer warranty honored — no grey-market sourcing, ever.
30-Day Guarantee Send it back within 30 days if it's not right — return freight on us.
Expert Reviewed Our team evaluates build quality and installation fit before we list any product.

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About trueflame Enclosure

trueflame is a trusted manufacturer of premium enclosure. Grill Island is an authorized dealer offering the full trueflame lineup with free delivery, price match guarantee, and expert support.

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