A natural stone outdoor shower costs $3,500–$35,000 installed in Los Angeles depending on size, stone type, and enclosure complexity. Travertine, bluestone, and slate are the best stone choices — each slip-resistant, durable, and heat-tolerant in Southern California's climate. Proper drainage and waterproofing under the stone floor are the two most critical installation details.
Tegula Stone has installed outdoor showers, pool surrounds, and stone hardscape across Los Angeles for 35 years. This guide covers everything from stone selection and base prep to drainage and permit requirements.
Quick Answer: The best natural stones for outdoor showers are tumbled travertine (slip-resistant, stays cool underfoot), bluestone (extremely durable, modern look), and slate (most slip-resistant, requires annual sealing). A basic outdoor shower floor and wall backing costs $3,500–$7,000 installed. A fully enclosed stone shower runs $18,000–$35,000+. All LA outdoor showers connected to home plumbing require a permit.
Quick Answer: Install a natural stone outdoor shower by preparing a properly sloped concrete sub-base with a linear or point drain, applying a waterproof membrane, setting stone with exterior-rated thinset on the floor and walls, and grouting with a non-sanded or sanded grout rated for outdoor use. In Los Angeles, connect drainage to your home's gray water system or a dry well and pull a plumbing permit before starting.
Not all natural stones perform equally in a wet, sun-exposed outdoor shower. The right stone is slip-resistant when wet, heat-tolerant under LA's summer sun, and durable against constant water exposure and mineral deposits from local hard water. Avoid polished finishes entirely on shower floors — they become dangerously slippery. For a detailed comparison of stone surfaces for wet areas, see our travertine pool deck guide.
The most popular outdoor shower stone in Los Angeles. Tumbling creates a naturally textured, slip-resistant surface. Travertine stays significantly cooler than concrete or tile under direct sun — important for barefoot comfort in LA summers. Available in Ivory, Noce, Walnut, and Silver tones. Cost: $8–$18/sqft material. Requires sealing every 2–3 years with a penetrating sealer to prevent water absorption and staining.
Pennsylvania bluestone is exceptionally hard and dense — it absorbs virtually no water and resists mineral staining from LA's hard water better than travertine or limestone. A natural cleft finish (the stone's natural split surface) is the slip-resistant choice for shower floors. Thermal-finished bluestone is another good option. Cost: $15–$28/sqft material. Bluestone requires less maintenance than travertine — seal every 3–4 years rather than every 2.
Natural slate's layered structure creates a deeply textured surface that is the most slip-resistant of any natural stone — ideal for households with elderly residents or young children. Slate is naturally dark (charcoal, black, green, rust) which can show efflorescence from LA's hard water more visibly than lighter stones. Seal annually with a color-enhancing penetrating sealer to prevent oxidation. Cost: $6–$16/sqft material.
Irregular flagstone (Arizona sandstone, quartzite) creates a natural, organic aesthetic for outdoor shower floors and paths leading to pools. Sandstone is porous and requires more frequent sealing (annually) but offers excellent traction when used with a textured finish. Quartzite flagstone is denser and more durable. All flagstone outdoor shower floors require non-sanded grout in 1–2 inch joints and a proper waterproof sub-base. Cost: $8–$22/sqft material.
Polished marble and polished limestone become dangerously slippery when wet. Sandstone with a smooth honed finish also loses traction when wet. Any porous stone without proper sealing will absorb soap residue and minerals over months, causing permanent staining. In coastal LA areas (Venice, Malibu, Santa Monica), avoid stones with high iron content — coastal salt air accelerates iron oxidation and causes rust-colored staining.
Outdoor shower walls face less slip risk than floors, opening up more options. Polished travertine and honed limestone work beautifully for shower wall accents. Stack stone veneer panels ($4–$12/sqft) create a dramatic natural wall texture with easier installation than individual stone pieces. For a seamless look, match the wall stone to the floor stone — use the same travertine tile on both for a cohesive design. Seal wall stone to prevent soap and hard water buildup.
Proper installation makes the difference between a stone shower that lasts decades and one that fails within a few years. Water infiltration under the stone slab is the leading cause of outdoor shower failure in Los Angeles. Our crews see the same avoidable mistakes repeatedly on repair jobs that come in after DIY or unlicensed installs.
Plan drainage before anything else. An outdoor shower drains to one of three options: a central point drain, a linear drain at the shower's edge, or a sloped floor that drains to a nearby landscaped area (check local ordinances — some LA municipalities restrict gray water discharge to landscape). Linear drains are preferred for modern stone showers; they require a single-slope floor (1/4 inch per foot toward the drain) rather than a four-slope floor. All drain connections require a plumbing permit in LA. Email [email protected] for a drainage assessment.
The shower floor requires a solid, non-moving sub-base. For an in-ground installation: excavate 6–8 inches, compact a 4-inch gravel drainage layer, pour a 3–4 inch concrete slab sloped toward the drain. For an elevated platform: a pre-sloped mortar bed over a waterproof membrane over a wood or concrete deck. Do not set stone directly on a flat slab without pre-sloping — water will pool and force its way under the stone within 1–2 years.
Apply a continuous waterproof membrane over the sub-base and up the walls 12–18 inches before setting any stone. Schluter KERDI (sheet membrane, ~$2.50/sqft) and RedGard (paint-on liquid membrane, ~$0.75/sqft) are the two most commonly used products in LA. Pay special attention to corners and the drain transition — these are where membranes most often fail. Use pre-formed waterproof corners rather than trying to fold a flat membrane. The membrane must cure completely (24–48 hours) before stone installation begins.
Set shower floor stone with a large-format exterior-rated polymer-modified thinset. Back-butter each stone (apply thinset to both the back of the stone and the sub-base) to achieve 95%+ mortar coverage under each piece — voids under shower stones collect water and cause cracking. Use plastic tile spacers to maintain consistent joint width (3/8 inch minimum for outdoor showers to allow for movement). Check level and slope constantly — the floor must drain without pooling anywhere.
Use a polymer-modified, non-staining grout rated for wet outdoor applications. For travertine with 3/8-inch joints: sanded grout tinted to complement the stone tone. For bluestone with tight joints: non-sanded grout. Apply grout sealer to all grout lines within 72 hours of installation and re-apply annually. Grout joints in outdoor showers deteriorate faster than interior joints due to sun, thermal cycling, and continuous water exposure. Tegula Stone uses Laticrete Permacolor Select for all outdoor shower grouting — it outperforms standard grout in UV and wet environments.
Seal all natural stone in the shower (floor and walls) within 72 hours of grout cure. Use a penetrating sealer appropriate for the specific stone type — travertine-specific sealers are more effective than general-purpose stone sealers. Apply in two thin coats, allowing full absorption between coats. In Los Angeles, plan to re-seal outdoor shower stone annually for porous stones (travertine, sandstone) and every 2–3 years for dense stones (bluestone, quartzite). A properly sealed stone shower resists soap scum, hard water deposits, and algae significantly better than unsealed stone.
Costs vary significantly based on shower size, stone type, whether the project includes privacy walls or enclosures, and the complexity of plumbing connections. The price ranges below reflect installed costs in Los Angeles County including labor, materials, permits, and plumbing rough-in. For a full breakdown of stone material costs, see our natural stone cost guide.
Any outdoor shower connected to your home's plumbing requires a plumbing permit from your local building department. If the shower includes walls, a roof, or any permanent structure over 120 square feet, a building permit is also required. Tegula Stone handles all permit applications, inspections, and plan submissions for our outdoor shower projects in Los Angeles, Pasadena, Santa Monica, and the San Fernando Valley.
Los Angeles County permits outdoor shower drainage to a landscaped area (mulched basins, planters) under California's Gray Water Standards, provided the shower uses only biodegradable soap and the runoff does not reach storm drains or neighboring properties. However, shower drainage to a municipal sewer requires a full plumbing permit and connection. Consult with a licensed plumber during planning — gray water rules vary by municipality within LA County.
Los Angeles outdoor showers face three primary maintenance challenges: hard water mineral deposits (LA's water averages 300+ ppm hardness), algae growth during cool, damp winters, and UV degradation of sealers and grout. Address mineral deposits monthly with a pH-neutral stone cleaner. Treat algae with a dilute bleach solution (1:10) applied and rinsed immediately. Re-seal stone annually to maintain UV resistance. See our stone maintenance schedule for a full annual checklist.
35 years of natural stone installation in Los Angeles. Free estimate, permits handled.
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