Gunite Pool Design Visualizer
Gunite Pool
Configure every detail of your gunite swimming pool: shape, size, interior finish, spa, water features, waterline tile, accent tile, coping, deck, landscaping, lighting, and heating. The live preview updates with every choice you make.
Design Your Gunite Pool, One Decision at a Time
Gunite is the most versatile and most popular inground pool construction method in the United States. Because the concrete shell is formed in place over a custom steel reinforcement cage, a gunite pool can be built in virtually any shape, any depth profile, with any built-in feature, and finished with any interior material from basic white plaster to hand-applied full glass tile. That unlimited flexibility is gunite’s great advantage, and also the reason that every design decision needs to be made deliberately before construction begins. Once the steel is set and the concrete is applied, changing your mind is expensive.
This tool walks through all 23 gunite pool design decisions in sequence, one per step. Each decision updates the live preview so you can see exactly how your choices combine into a finished design. Work through all 23 steps and you will have a complete gunite pool specification ready to bring to your builder.
Live Gunite Pool Preview
Afternoon ViewHow Gunite Pools Are Built: The Complete Construction Sequence
A gunite pool is built in place, formed from reinforced concrete that is pneumatically applied over a custom steel reinforcement cage. Because every element is formed on site, a gunite pool can be any shape, any depth profile, any size, with any built-in feature, and finished with any interior material. This is the fundamental advantage of gunite construction over fiberglass and vinyl liner: unlimited design freedom. The trade-off is time and a construction process that involves more trades, more inspections, and a longer timeline than pre-formed pool types.
The Gunite Construction Sequence
The construction of a gunite pool follows a defined sequence of stages, each requiring inspection before the next can begin. The first stage is layout and excavation: the pool outline is marked on the ground and an excavator removes all soil within the pool footprint plus a working margin. The excavation must be accurate in both plan and depth since the gunite shell follows the excavated shape. Stage two is the steel rebar cage: plumbers and electricians rough-in the return lines, main drain lines, light niches, and bonding wire before the steel crew ties the rebar cage. The rebar forms the skeletal shape of the pool and provides the tensile strength that prevents the concrete shell from cracking. A third-party inspection of the rebar typically happens before gunite application.
Stage three is the gunite application itself. A gunite crew uses a pneumatic pump to project dry concrete mix through a hose at high pressure onto the rebar cage. The concrete is hydrated at the nozzle and the nozzleman determines the final thickness of the shell, typically 6 to 10 inches on walls and 4 to 8 inches on the floor depending on the design and soil conditions. The concrete is then troweled smooth by hand while still wet. Stage four is the cure period: the freshly applied gunite is wetted down twice daily for at least 28 days to ensure proper curing. During this period, tile and coping are typically installed. Stage five is the interior finish application: the pool shell is prepared by acid washing and the interior plaster, aggregate, or glass tile is applied by a specialist crew. The pool is filled immediately after the interior finish is applied, and water chemistry management begins immediately to protect the fresh surface.
🏗️Shop Pool Plaster and Resurfacing Supplies on AmazonPool plaster, pebble aggregate, and resurfacing materials for gunite pools→Gunite vs Shotcrete: What Is the Difference?
The terms gunite and shotcrete are often used interchangeably in the pool industry, but they describe two slightly different processes. Gunite uses a dry concrete mix that is conveyed through a hose and hydrated at the nozzle by water injected at the point of application. Shotcrete uses a pre-mixed wet concrete that is pressurized and projected through a hose without adding water at the nozzle. Both produce a dense, high-strength concrete shell with similar structural properties. Shotcrete is considered slightly more consistent because the water-to-cement ratio is controlled at the batch plant rather than at the nozzle, where operator skill affects the hydration rate. For the homeowner, the functional difference between a gunite pool and a shotcrete pool is negligible, and both terms refer to the same category of custom concrete inground pool construction.
The Bond Beam: A Gunite-Specific Structural Element
The bond beam is the structural element at the top of the gunite pool wall, the thickened concrete ring around the top perimeter of the pool shell that ties the wall to the coping and deck system. In standard gunite pool construction, the bond beam is at deck level and the coping material is applied directly to it. In pools with raised features, the bond beam can be extended upward to form a raised wall that supports a sheer descent waterfall, a raised spa, or a water feature screen. The height, thickness, and surface treatment of the bond beam all affect the finished appearance of the pool from the deck. Specifying the bond beam detail early in the design is important because it affects excavation, structural design, and tile placement decisions downstream.
Gunite Pool Interior Finishes: Plaster, Pebble, Quartz, and Glass Tile
The interior finish of a gunite pool determines the color of the water, the texture of the surface underfoot, the chemical demand of the pool, and when the pool will next need resurfacing. Gunite can accept any interior finish. This is one of its key advantages over fiberglass, which has a factory-applied gel coat surface that cannot be changed, and vinyl liner pools, where the interior appearance is determined by the liner pattern.
White and Colored Plaster
White plaster, also called marcite or pool plaster, is the original gunite pool interior finish and the least expensive option. It is a mixture of white Portland cement, white marble dust, and water applied by hand to a thickness of approximately 3/8 inch. White plaster produces the vivid bright blue water most people picture when they think of a swimming pool. It has a lifespan of 7 to 12 years before resurfacing is required. Colored plaster adds pigment to produce aqua, Caribbean blue, or black water tones. Gray plaster produces a contemporary deeper blue-gray water color. All plaster finishes are porous and can develop calcium deposits, etching, and staining over their lifespan. Proper water chemistry management, particularly maintaining balanced pH, calcium hardness, and total alkalinity, extends plaster life significantly.
Quartz Aggregate Finishes
Quartz aggregate finishes embed quartz crystals in a white or colored cement matrix. Brand names include QuartzScapes, StoneScapes Aqua White and Aqua Blue, Crystal Quartz, and many regional equivalents. The quartz crystals are harder than marble dust and produce a more durable, longer-lasting surface than plain plaster. Blue quartz aggregate produces the rich sapphire water color that is currently the most popular premium finish choice for new gunite pools. Aqua quartz produces a tropical turquoise water tone. The surface lifespan is typically 12 to 18 years with proper water chemistry management. Quartz aggregate finishes cost approximately $2,000 to $6,000 more than white plaster on a medium-size pool.
💎Shop Pool Waterline Tile on AmazonGlass mosaic and porcelain waterline tile for gunite pool interiors→Pebble Aggregate Finishes
Pebble aggregate finishes use genuine small river pebbles or manufactured pebble aggregate embedded in a cement matrix and exposed by acid washing after the surface has partially set. Brand names include Pebble Tec, Pebble Sheen, Pebble Fina, and Hydrazzo. Natural pebble finishes produce an earthy, warm water color ranging from teal to olive green depending on the pebble mix selected. Midnight black pebble produces near-black water that reflects the sky and surrounding landscape like a mirror, a particularly dramatic effect for pools with dark surrounds or nighttime lighting. Blue pebble mixes use dyed or naturally colored stones to produce a vivid blue with a textured surface. Pebble finishes have the longest lifespan of any cementitious gunite finish, typically 18 to 25 years, and their textured surface is less susceptible to staining than smooth plaster. The surface texture is mildly abrasive underfoot, which some swimmers find uncomfortable on bare feet.
Full Glass Tile Gunite Pool Interiors
A full glass tile interior is the most expensive and most visually spectacular gunite pool finish available. Individual glass tiles, typically 1-inch or 2-inch squares, are hand-set across the entire pool interior. The result is a luminous, deeply reflective surface that produces water colors more vivid than any plaster or aggregate finish can achieve. Glass tile interiors cost $18,000 to $60,000 more than a quartz aggregate finish on a medium pool. The tile itself does not require resurfacing. Iridescent glass tile shifts color depending on viewing angle and lighting, and is particularly dramatic under LED color-changing pool lights at night. Laminar jets at night are a popular pairing with glass tile interiors because the glass-smooth water streams are illuminated by the tile reflection from below.
Gunite Pool Resurfacing
Every gunite pool requires interior resurfacing on a periodic cycle determined by the finish material used and the consistency of the water chemistry management. White plaster typically requires resurfacing every 7 to 12 years. Quartz aggregate runs 12 to 18 years. Pebble aggregate runs 18 to 25 years. Glass tile has an indefinite lifespan if the grout is maintained. Resurfacing involves draining the pool, pressure washing and acid washing the old surface, mechanically removing loose or deteriorated material, and applying the new interior finish. The cost of resurfacing a medium gunite pool runs $5,000 to $10,000 for white plaster, $8,000 to $18,000 for quartz aggregate, and $12,000 to $28,000 for pebble aggregate. When budgeting the long-term cost of gunite pool ownership, factor in at least two resurfacing events over a 30-year pool lifespan.
Gunite Pool Cost, Tanning Ledges, Grottos, and Edge Design
Gunite Pool Cost Guide by Size
The cost of a gunite pool includes the pool shell, interior finish, tile, coping, and equipment. It does not include the deck, fence, landscaping, or outdoor structures, which typically add 50 to 100 percent to the pool-only cost when budgeting the complete backyard transformation. The wide cost ranges below reflect regional variation in labor costs, soil conditions, access difficulty, and specification level.
Tanning Ledge Construction in Gunite
A tanning ledge, sun shelf, or Baja shelf is poured as part of the gunite shell and forms a shallow platform typically 4 to 8 inches deep spanning part or all of the pool width at the shallow entry end. Because the ledge is formed in gunite, it can be any size, shape, or depth specified by the designer. The ledge can have a slight slope toward the pool for drainage, can be fitted with in-floor bubbler jets for gentle massage effect, and can be finished in any interior material that the main pool uses. A tanning ledge 6 feet wide by the full pool width costs $1,000 to $8,000 to add to a new gunite pool depending on size and whether bubblers are included. It is the most requested pool feature in residential gunite construction and adds no structural complexity to the build.
Grottos and Waterfall Caves in Gunite
A grotto is a rock formation built adjacent to or overhanging the pool that creates a cave-like shaded space accessible by swimming through an opening in the rock. The gunite pool shell typically extends under or into the grotto to create the swimming entry. The rocks are either real boulders placed by crane or artificial rock formed from shotcrete over steel framing and painted with stone-effect coatings. Real rock grottos are structurally heavier and require careful foundation design. Artificial rock grottos are lighter and can be more freely shaped. Both types include a waterfall element that creates the signature visual and sound experience. Grottos add $15,000 to $40,000 to a gunite pool project depending on size and complexity. They add significant visual drama but require a fairly large backyard to accommodate properly.
🌧️Shop Pool Water Features on AmazonSheer descent spillways and deck jets for gunite pool water features→Vanishing Edge and Negative Edge Gunite Pools
A vanishing edge pool, also called a negative edge pool or infinity pool, is a gunite pool where one or more sides of the pool have the coping level set at the water surface rather than above it. Water overflows continuously over this edge and falls into a catch basin or balance tank below, which then pumps the water back to the main pool. The visual effect is that the pool appears to merge with the view beyond, whether that view is a valley, an ocean, a city skyline, or a garden. Vanishing edges add 12 to 15 percent to the overall pool cost because of the additional structural requirement for the overflow wall, the balance tank, the return pump, and the catch basin. A vanishing edge is a gunite-only feature: fiberglass and vinyl liner pools cannot incorporate a custom vanishing edge because the overflow geometry requires custom concrete forming.
Gunite Pool Safety, Permits, Timeline, and Choosing a Builder
Gunite Pool Construction Timeline
The gunite pool construction timeline is longer than fiberglass or vinyl liner because the concrete shell must cure before interior finish can be applied, and each stage requires inspection. A typical residential gunite pool project follows this schedule: 2 to 8 weeks for permit approval before construction begins; week 1 for excavation; weeks 2 to 3 for plumbing, electrical rough-in, and steel rebar cage; week 3 to 4 for gunite application; weeks 4 to 7 for curing, during which tile, coping, and deck work proceed in parallel; week 7 to 8 for interior finish application and pool fill; weeks 8 to 10 for water chemistry stabilization and startup. The total timeline from permit approval to first swim runs 8 to 14 weeks for a standard project, with complex features like grottos or large decks adding 2 to 4 additional weeks. Cold weather halts gunite application below 40 degrees Fahrenheit, making winter construction impractical in northern climates.
Pool Safety Fencing Requirements
Every U.S. state requires a safety barrier for residential inground pools. The International Residential Code (IRC) Section R326 requires a barrier at least 48 inches high with no openings that allow a 4-inch sphere to pass through, self-closing and self-latching gates opening away from the pool, and the gate latch positioned at the top of the gate or on the inside face. All pool deck and coping materials must meet a minimum DCOF (Dynamic Coefficient of Friction) of 0.42 when wet under ANSI A137.1 for slip resistance. Anti-entrapment drain covers conforming to the Virginia Graeme Baker Pool and Spa Safety Act (VGBA) are required for all main drains in new construction. Pool bonding under NEC Article 680 connects all metallic components with a copper conductor to equalize voltage and prevent electric shock. A pool cover is worth specifying at the design stage because the automatic safety cover track is built into the pool coping and cannot easily be added later. An automatic cover provides both a child safety barrier and a heat retention function, reducing heating costs by 50 to 70 percent when the pool is not in use. New gunite pool plaster also requires a specific startup protocol: the pool must be brushed twice daily for 14 to 28 days to remove calcium dust as the plaster cures and to prevent spotting and streaking on the fresh surface. Your builder should provide a written plaster startup and brushing schedule as part of the pool commissioning package. Setbacks from property lines for inground pools vary by jurisdiction but typically run 5 to 15 feet. Verify your local setback requirements before finalizing pool size and placement. Your gunite pool builder’s contract should explicitly reference compliance with all of these requirements, and each should be inspected and documented before the pool is filled.
⚙️Shop Pool Safety Fencing on AmazonCode-compliant 48-inch aluminum pool fencing with self-latching gates→How to Choose a Gunite Pool Builder
Gunite pool construction requires a licensed contractor in every U.S. state. Verify the contractor’s current license before any discussions about price or timeline. Ask specifically how many gunite pools they have completed in the past three years and request a minimum of three references from pools completed within the last two years. Visit a completed project in person if possible: the quality of the finish, the tile alignment, the coping levelness, and the deck execution all tell you more than any brochure or website. Ask the builder who applies the gunite. Some builders subcontract this to a gunite crew they have never worked with before. A builder who has an established, consistent relationship with the same gunite crew produces more consistent results. Ask what happens if the gunite application does not pass inspection: how the repair is handled and who pays for it. Get at least three written bids on an identical scope of work with materials specified by brand and grade. The payment schedule in the contract should be tied to construction milestones, with a final payment of at least 10 to 15 percent retained until the pool is fully commissioned.
Everything for Your Gunite Pool
Research and order pool equipment, tile, coping, chemicals, and accessories for your gunite pool project.