Slick Rock Concrete builds hand-cast glass fiber reinforced concrete fire bowls, fire tables, fire-and-water bowls and pool scuppers in 12 stained colors. Outdoor Heat Direct carries 44 active Slick Rock Concrete products, 10 of them complete gas fire features, priced from $1,488.17 for a 22-inch RidgeLine bowl to $6,448.58 for an Oasis rectangular fire table with electronic ignition.
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Who makes Slick Rock Concrete, and where does it sit in the market?
Slick Rock Inc. is a cast-concrete manufacturer whose landscape line covers planters, bollards, water bowls, soaking tubs and gas fire features. The fire side is small and deliberate: four bowl and table families, three basin sizes, one burner platform underneath all of them.
At Outdoor Heat Direct the Slick Rock Concrete collection holds 56 listings, 44 of which are currently active and orderable. Of those, 10 are complete gas fire features with a burner included, 6 are basins or bowls sold without a burner, and the rest are water bowls, media, covers and remote kits. The dedicated Slick Rock fire bowl collection narrows that to 20 listings.
Slick Rock is the third concrete brand in our catalog, alongside Prism Hardscapes and American Fyre Designs. All three sit inside the broader GFRC collection and the wider concrete collection. We compare the three head to head further down.
What are the Slick Rock Concrete fire bowl and fire table series?
Four names cover everything that burns gas: RidgeLine, Horizon, Oasis and Cascade. RidgeLine is the entry family and comes as a square or a conical bowl in three sizes. Horizon is a single 36-inch square table. Oasis is the large-format family: a 34-inch round bowl, a 60-inch oval bowl and a 48-inch rectangular table. Cascade is the fire-and-water family, sold either as fire on glass or as true fire on water.
Prices below are live Outdoor Heat Direct prices for active configurations. The low figure is the match lit version; the high figure is the same model with the All-Weather Electronic Ignition System.
| Model | Shape | Size(s) | Match lit | With AWEIS electronic |
|---|---|---|---|---|
| RidgeLine Square Fire Bowl | Square | 22″, 29″, 34″ | $1,488.17 / $2,118.97 / $2,279.69 | up to $4,314.30 |
| RidgeLine Conical Fire Bowl | Conical | 22″, 29″, 34″ | $1,488.17 / $2,118.97 / $2,279.69 | up to $4,314.30 |
| Horizon Square Fire Table | Square table | 36″ × 36″ × 15″ H | $2,533.80 | $4,568.42 |
| Oasis Round Fire Bowl | Round | 34″ D × 16″ H | $3,098.33 | $5,858.75 |
| Oasis Oval Fire Bowl | Oval | 60″ × 28.5″ × 15″ H | $4,004.29 | $5,966.24 |
| Oasis Rectangular Fire Table | Rectangle table | 48″ L × 31″ D | $4,498.18 | $6,448.58 |
| Cascade Fire on Glass | Square or conical | 22″, 29″, 34″ | $2,001.56 – $4,901.63 | |
| Cascade Fire on Water | Square or conical | 22″, 29″, 34″ | $4,693.71 / $5,143.57 / $5,301.21 | |
Prices from the Outdoor Heat Direct catalog, September 2026. Basin-only versions (no burner) start at $912.86 for a RidgeLine basin and $1,742.51 for the Horizon table basin.
What is Slick Rock's GFRC concrete actually made of?
Slick Rock's own CSI guide specification describes the mix as a "manufacturers proprietary blend of portland cement, sand, fiber reinforcement, acrylic admixtures and plasticizing agents." The same document lists compressive strength "at 28 days 10,990 PSI" and flexural strength of MR=784. The finish is a "solvent topically applied 'semi' gloss sealer," with a separate elastomeric sealer offered for the inside of water basins.
Here is a discrepancy worth knowing. Slick Rock's marketing pages say the pieces are "made from 15000PSI concrete," and dealers repeat a "15,000 psi hand cast glass fiber reinforced concrete" line. The engineering document the company publishes for architects says 10,990 PSI. Both are far above the 3,000–4,000 PSI of a patio slab, so the material is strong either way — but if a spec reviewer asks for a number, use the CSI figure.
Slick Rock does not publish a wall thickness for its fire basins. If a structural submittal needs one, ask us and we will request it from the factory. For how glass fiber reinforcement changes a concrete fire feature's behavior, see our explainer on what GFRC really is.
How many BTUs does a Slick Rock Concrete fire bowl put out?
Slick Rock rates by burner, not by model, because the same burner platform drops into different basins. That confuses shoppers who expect one BTU number per product.
| Burner / system | Rating | Fits | Control |
|---|---|---|---|
| Electronic ignition burner (AWEIS, 24V) | 31,000 BTU | 22″ basin | Stainless ring, 24V AC transformer, pilot assembly |
| Electronic ignition burner (AWEIS, 24V) | 83,000 BTU | 29″ and 34″ basins | Stainless ring, 24V AC transformer, pilot assembly |
| Match lit burner | Rated to a 200,000–300,000 BTU maximum | All basins | Stainless ring, key valve, flame height adjusted at the valve |
| SUBEIS 24V automated (submersible) | 400,000 BTU/hr max | Water applications, 9″ hoop manifold | 24V transformer |
| 30VDC system | 200,000 BTU/hr max | Remote / battery-backed installs | WiFi remote kit available |
Read the match lit figure correctly: 200,000–300,000 BTU is the burner ring and valve's maximum capacity, not the output you will run. Turned to a normal flame height a 34-inch bowl behaves like any other mid-size gas bowl. Sizing guidance is in our guide to how many BTUs a fire pit needs.
What colors does Slick Rock Concrete come in, and do any cost extra?
Twelve stained colors, and — checked across every active variant in our catalog — none of them carries an upcharge. A Copper 34-inch RidgeLine costs the same as a Gray one. That is not true of every concrete brand, and it removes a decision most buyers agonize over for no reason.
| Color | Reads as | Color | Reads as |
|---|---|---|---|
| Great White | Brightest white | Denim | Muted blue-gray |
| Adobe | Warm tan | Copper | Warm orange-brown |
| Gray | Neutral mid gray | Rust Buff | Terracotta |
| Coal Gray | Dark charcoal | Seafoam | Pale green-gray |
| Onyx | Near black | Shale | Cool deep gray |
| Umber | Dark earth brown | Mahogany | Red-brown |
Color is a water-based Slick Rock colorant applied over the cast piece, then sealed. Because every piece is hand cast and hand stained, two bowls in the same color will not be identical — Slick Rock says so openly. Custom colors are available through the factory sample program. If you need an exact match to existing hardscape, order a sample first.
Not sure which size or color fits your patio?
Send us a photo of the space and the gas line you already have. We will tell you which Slick Rock configuration works and which one will not.
Talk to the fire feature teamShould you choose match lit or the All-Weather Electronic Ignition System?
Two ignition paths, named plainly. Match lit uses a stainless burner ring and a key valve: open the valve, light it, adjust flame height by hand. The All-Weather Electronic Ignition System — Slick Rock abbreviates it AWEIS — is a 24V system with a pilot assembly and an ignition control module, and it is what enables the handheld remote ($399) and the WiFi 30VDC remote kit ($795.69) we stock.
Both are available in natural gas and propane. The choice is a budget question and a habit question, and we walk through both in match lit vs electronic ignition.
How do Slick Rock fire and water bowls and pool scuppers work?
This is the part of the line competitors do not match, and it is why Slick Rock shows up on so many pool projects.
Cascade Fire on Water runs flame and a water spillway from the same bowl, in 22, 29 and 34 inch sizes, square or conical, natural gas or propane. Prices at Outdoor Heat Direct run $4,693.71, $5,143.57 and $5,301.21 by size. Cascade Fire on Glass solves the same look a different way: Slick Rock's own description says "the water bypasses the fire components using a plumbed scupper," which "leaves the interior of the bowl dry allowing for the use of a traditional electric or match lit fire unit." That configuration starts at $2,001.56 — roughly half the price — because it uses a standard burner instead of a submersible one. If the flame does not need to sit in standing water, take the fire-on-glass route.
Pool scuppers are the Spill and Camber families: Spill Classic ($693), Spill Box ($1,007.67), Spill Classic Large ($1,201.20), Camber Round and Camber Square ($1,372.13 each), Spill Square and Spill Conical ($1,600.95) and Spill Half ($1,684.59). Cascade water bowls run $1,099.43 to $1,575.39 and let you choose a copper or stainless steel spillway. Browse them in pool water bowls, and see the full cross-brand range in fire and water bowls.
Slick Rock vs Prism Hardscapes vs American Fyre Designs: which GFRC brand should you buy?
All three cast glass fiber reinforced concrete. They are not interchangeable. Every number below comes from our own live catalog, not from brand marketing.
| Slick Rock Concrete | Prism Hardscapes | American Fyre Designs | |
|---|---|---|---|
| Entry price, complete gas fire feature | $1,488.17 (RidgeLine 22″) | $870 (Verona Small Fire Bowl 24″) | $1,954 (24″ Marseille Fire Bowl) |
| Active fire bowls / tables / fire & water | 10 | 67 | 53, plus 29 outdoor fireplaces |
| Total active listings | 44 | 84 | 120 |
| Standard finishes | 12 stained colors, no upcharge | 6 (Pewter, Café, Ebony, Natural, Ultra White, Coastal) | Varies by series; Reclaimed Wood in French Oak or Silver Pine |
| Ignition options in catalog | Match lit, or AWEIS 24V electronic (factory-built) | Match lit standard; Full Electronic Ignition System add-on $1,799 | Manual Flame Sensing Control, or FyreStarter Bluetooth Control |
| Typical BTU | 31,000 (22″) / 83,000 (29″–34″) electronic | 65,000 across the line; 90,000 on Tavola 6 and Tavola 110 | Published per model; confirm with our team |
| Factory warranty | 1 year, material and workmanship | 2 years | 3 years on GFRC body; 1 year on burners, valves and electronics |
| Published weights | Not published by the factory | Not published by the factory | Not published by the factory |
| Fire-and-water and pool scuppers | Deep: Cascade, Spill, Camber | Yes: Moderno, Sorrento, Verona, Lombard, Toscana, Ibiza | Limited: Marseille bowls with water spout |
Buy Slick Rock Concrete if you are doing a pool or a water feature, if you want a color range that does not punish you for picking the interesting one, or if you want fire and water from a single manufacturer with matching scuppers and planters. It is also the brand to pick when you want a basin without a burner and plan to set your own.
Buy Prism Hardscapes if price per model matters most or you want the widest choice of table shapes and lengths — 67 active fire models against Slick Rock's 10, and the cheapest entry point of the three. Full detail in our Prism Hardscapes buying guide.
Buy American Fyre Designs if warranty length is the deciding factor — three years on the concrete body is the longest of the three — or if you also want a matching outdoor fireplace, fire urn or lantern from the same maker. Our American Fyre Designs guide covers the full range.
Nobody wins outright. Slick Rock's catalog is the narrowest and its warranty the shortest; what you buy instead is the water side of the line and a color palette nobody else matches.
What clearances does Slick Rock Concrete publish?
It does not. We checked the manufacturer's product pages, its CSI guide specification and its care and maintenance document, and found no stated clearance to combustibles for any fire feature. That is why our clearance reference table by brand lists Slick Rock as "not published."
Until it publishes one, use the conservative end of what comparable manufacturers require. Across brands that do publish, the aggregate range is 36–48 inches to the sides and 60–120 inches overhead: American Fyre Designs specifies 36 and 72; The Outdoor Plus 48 and 96; Prism Hardscapes 4 feet and 6 feet. Plan for 48 inches clear on every side and 96 inches overhead and you are inside all of them.
Gas pressure is consistent across the industry: 7 inches water column for natural gas and 11 inches for propane, plus or minus an inch. Installation is governed by the National Fuel Gas Code, ANSI Z223.1 / NFPA 54, and belongs to a licensed gas technician.
What does the Slick Rock Concrete warranty actually cover?
The factory language, reproduced verbatim by dealers, reads: "Slick Rock Inc.'s array of merchandise is warranted against any material defects as well as the quality of craftsmanship. The warranty is for one (1) year from the original date of purchase under the condition that proper care and maintenance is practiced." A second dealer states coverage for structural cracking and sealer failure, repairs at the manufacturer's discretion.
One year is short for this price bracket, and that maintenance condition has teeth. Slick Rock's care document addresses moisture, freeze-thaw and weathering, and sells an elastomeric sealer described as a "solvent free, low VOC monolithic, seamless membrane" for water basin interiors. If you live where it freezes, seal it, cover it and drain it. We have found no UL, CSA or ANSI product listing published for Slick Rock fire features; if your inspector requires a listed appliance, ask us before ordering.
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44 active products, 12 colors at the same price, natural gas and propane. Free shipping.
Shop all Slick Rock Concrete Browse all fire bowlsFrequently asked questions
Is Slick Rock Concrete real GFRC or just poured concrete?
It is glass fiber reinforced concrete. Slick Rock's own guide specification describes the mix as a proprietary blend of portland cement, sand, fiber reinforcement, acrylic admixtures and plasticizing agents, hand cast rather than poured into a slab form. That is what allows thin, sculptural bowl walls that a plain concrete mix could not hold.
How many BTUs is a 34-inch Slick Rock fire bowl?
With the 24V All-Weather Electronic Ignition System burner, 83,000 BTU — the same rating used for both the 29-inch and 34-inch basins. The 22-inch basin's electronic burner is rated 31,000 BTU. Match lit burners are rated to a 200,000–300,000 BTU maximum, which is valve capacity rather than the output you will actually run.
Do any Slick Rock colors cost more than others?
No. We checked every active variant in our catalog: all 12 standard colors price identically on every model, whether you pick Great White, Onyx, Copper or Seafoam. Custom colors outside the standard 12 are available through the factory sample program and are quoted separately.
Can I add a remote to a match lit Slick Rock fire bowl later?
No. The remote works with the All-Weather Electronic Ignition System, which is built into the unit at the factory with its own pilot assembly, control module and transformer. Match lit units cannot be converted in the field. Choosing electronic at order time costs roughly $1,950 to $2,760 more depending on model.
What is the difference between Cascade Fire on Water and Cascade Fire on Glass?
Fire on Water puts the burner in the water, using a submersible system. Fire on Glass routes the water around the fire components through a plumbed scupper so the bowl interior stays dry and a standard burner can be used. Fire on Glass starts at $2,001.56; Fire on Water starts at $4,693.71.
Does Slick Rock publish a clearance to combustibles?
No. Neither its product pages nor its published specification documents state a clearance figure. Until it does, plan on 48 inches to the sides and 96 inches overhead, which satisfies the strictest clearance we have found published by comparable fire feature manufacturers. Always follow local code and your installer's judgment.
How long is the Slick Rock Concrete warranty?
One year from the original date of purchase, covering material defects and quality of workmanship, conditional on following the maintenance guidelines. For comparison, Prism Hardscapes carries two years and American Fyre Designs carries three years on the GFRC body with one year on burners and electronics.
Can a Slick Rock fire bowl run on propane?
Yes. Every fire model is configurable for propane or natural gas, and the fuel is chosen at order time — the orifice differs, so it is not a switch you flip later. Slick Rock also sells a concrete propane tank cover ($682.50) that conceals a 20 lb cylinder next to the bowl.
Can I buy just the concrete bowl without a burner?
Yes, and this is one of Slick Rock's genuinely useful options. Basin-only listings start at $912.86 for a RidgeLine basin, $1,045.86 with a media pan, $1,742.51 for the Horizon table basin and $2,209.29 for the Oasis basin. Useful if your installer is supplying the burner and controls.
What media should I put in a Slick Rock fire bowl?
Slick Rock offers fire glass and black lava rock. Its fire glass runs $218 per 20 lbs and lava rock $56 per 20 lbs, with 40 and 60 lb quantities available. A 22-inch bowl takes roughly 20 lbs and the 29-inch and 34-inch bowls roughly 40 lbs. Our fire glass vs lava rock guide covers the tradeoffs.
Sources and accuracy note. Model names, dimensions, burner ratings, ignition system names and color list come from slickrockconcrete.com product and resource pages and from Slick Rock Inc.'s published CSI guide specification (compressive strength 10,990 PSI at 28 days; flexural MR=784). Warranty language is quoted from dealer reproductions of the factory warranty and confirmed across two independent dealers. Where Slick Rock's marketing pages and its CSI specification disagree on compressive strength (15,000 PSI vs 10,990 PSI), we cite both and recommend the specification figure. Wall thickness, per-model shipping weights and clearance to combustibles are not published by the manufacturer; we have said so rather than estimate. All prices, product counts and variant option data are read directly from the live Outdoor Heat Direct catalog in September 2026 and change without notice. The $1,950–$2,760 electronic ignition premium is our own arithmetic on those catalog prices. Comparative brand figures for Prism Hardscapes and American Fyre Designs are catalog counts of active listings, not manufacturer claims. Gas fire features must be installed by a licensed gas technician in accordance with the National Fuel Gas Code, ANSI Z223.1 / NFPA 54 and local code.