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Aria Sintered Stone
Aria sintered stone opens with a crisp white base and expressive veining in warm rust, soft copper, and subtle grey undertones. The branching, organic pattern moves across the surface with genuine energy, and at 20mm, the slab has the physical presence to match it.
The warm rust and copper tones give Aria a character that sets it apart from cooler white stones. Grey undertones keep the composition balanced, pulling the overall look back from dramatic without losing its confidence. Feature walls, waterfall islands, and statement benchtops are where this slab comes into its own.
At 20mm, Aria is built for applications that demand more. The additional thickness suits outdoor benchtops, alfresco areas, and high-traffic commercial environments where structural integrity matters as much as appearance.
Resistant to heat, staining, and scratching, with zero sealing required. A surface built for heavy use, indoors and out.
Best For: Outdoor benchtops, waterfall islands, alfresco areas, feature walls, splashbacks, commercial applications
Visit our Sydney or Newcastle showroom to see the Aria sintered stone slab in person and find the right fit for your project.
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Belle Grigio Sintered Stone
Belle Grigio sintered stone features a soft grey base layered with intricate, flowing veining that ranges from pale silver through to mid-grey. Fine cloud-like patterns blend with more defined mineral lines across the surface, creating a depth and movement that feels organic rather than engineered. At 20mm, the slab carries a solidity that suits its sophisticated palette.
The tonal range is what makes Belle Grigio particularly interesting to work with. Nothing sits flat or static. The veining shifts across the surface in a way that adds visual interest without demanding attention, making it equally suited to full-surface designs and statement applications where consistency of tone across a large area matters.
At 20mm, Belle Grigio suits outdoor benchtops, pool surrounds, and high-traffic commercial surfaces where the additional thickness delivers real structural advantage. It pairs naturally with crisp white cabinetry, natural timber, and both chrome and matte black fixtures.
Built for the demands of outdoor and commercial environments. Resistant to heat, staining, and scratching, with zero sealing required.
Best For: Outdoor benchtops, kitchen benchtops, splashbacks, bathroom vanities, feature walls, large format flooring
Visit our Sydney or Newcastle showroom to see the Belle Grigio sintered stone slab in person and find the right fit for your project.
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Bianco Grano Sintered Stone
Bianco Grano sintered stone presents a soft, cool white base with fine granular detailing that gives the surface a quiet texture without pattern or veining. Smooth and consistent across the slab, the subtle tonal variation adds gentle depth while keeping the overall look calm and cohesive. At 20mm, it brings that same understated quality with the structural weight to back it up.
Simplicity is what Bianco Grano does best. It provides a clean, neutral backdrop that lets other design elements take the lead, timber joinery, matte black accents, and brushed metal fixtures all read better alongside it. The delicate cloud-like texture introduces just enough interest to keep the surface from feeling flat without ever drawing attention away from the space as a whole.
At 20mm, Bianco Grano is well suited to outdoor benchtops, alfresco areas, and large format flooring where a clean, bright surface needs to perform under real conditions.
Built for the demands of outdoor and commercial environments. Resistant to heat, staining, and scratching, with zero sealing required.
Best For: Outdoor benchtops, kitchen benchtops, splashbacks, bathroom vanities, wall cladding, large format flooring
Visit our Sydney or Newcastle showroom to see the Bianco Grano sintered stone slab in person and find the right fit for your project.
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Bianco Linea Sintered Stone
Bianco Linea sintered stone features a soft white base with delicate linear veining in warm beige and light taupe that flows gently across the surface. The veins move with a quiet direction and rhythm, adding subtle movement to what is otherwise a clean, restrained palette. At 20mm, the slab brings a physical confidence that matches its refined appearance.
The balance between simplicity and detail is what makes Bianco Linea stand out. The fine veining introduces just enough visual interest to keep the surface alive, while the white backdrop holds everything together without effort. It sits naturally alongside light timber, soft neutrals, matte black fixtures, and brushed metallic finishes in both contemporary and classic interiors.
At 20mm, Bianco Linea handles outdoor benchtops, alfresco areas, and unsupported spans where the additional thickness provides real structural reliability alongside its quiet good looks.
Resistant to heat, staining, and scratching, with zero sealing ever needed. A surface built for heavy use, indoors and out.
Best For: Outdoor benchtops, kitchen benchtops, splashbacks, bathroom vanities, feature walls, large format flooring
Visit our Sydney or Newcastle showroom to see the Bianco Linea sintered stone slab in person and find the right fit for your project.
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Calacatta Luxe Sintered Stone
Calacatta Luxe sintered stone carries warm gold and fine grey veining across a crisp white base in a satin finish that sits somewhere between polished and matte. At 20mm, the slab brings an added weight and depth to the surface that makes it particularly well-suited to outdoor benchtops, alfresco areas, and applications where the stone needs to perform structurally as well as aesthetically.
The satin finish behaves differently from a standard polished surface. It absorbs light rather than reflecting it, allowing the gold and grey veining to shift subtly throughout the day. The warmth of the gold comes forward in morning light and recedes in the evening as the grey takes over. A surface that rewards time spent with it.
At 20mm, Calacatta Luxe handles unsupported spans, outdoor benchtops, and high-traffic commercial surfaces without compromise. The additional thickness adds load-bearing capability that the 12mm format simply cannot match.
The 20mm format suits benchtops, flooring, and wall cladding without compromise. Resistant to heat, staining, and scratching, with zero sealing ever needed.
Best For: Outdoor benchtops, alfresco areas, kitchen benchtops, splashbacks, feature walls, commercial applications
Visit our Sydney or Newcastle showroom to see the Calacatta Luxe sintered stone slab in person and find the right fit for your project.
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Champagne Sintered Stone
Champagne sintered stone brings a soft, warm beige base with delicate layered tonal variation and subtle, flowing veining in gentle taupe and sandy hues. The movement across the surface is calm and organic, the kind of natural pattern that feels considered rather than designed. At 20mm, the slab carries a weight and solidity that suits its warm, grounded palette.
The tonal palette is what gives Champagne its broad appeal. Warm timber cabinetry sits naturally alongside it. Brushed nickel and brass fixtures feel at home against the sandy beige tones. Soft neutral palettes find a reliable anchor in it. Nothing clashes, nothing competes; the surface simply works with whatever surrounds it.
At 20mm, Champagne suits outdoor benchtops, alfresco dining areas, and pool surrounds where a warm neutral surface needs to hold up under sun, moisture, and daily outdoor use without losing its finish.
Resistant to heat, staining, and scratching, with no sealing required and no ongoing maintenance to think about.
Best For: Outdoor benchtops, alfresco areas, kitchen benchtops, bathroom vanities, splashbacks, feature walls
Visit our Sydney or Newcastle showroom to see the Champagne sintered stone slab in person and find the right fit for your project.
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Crema Avorio Sintered Stone
Crema Avorio sintered stone presents a soft, creamy ivory base with delicate natural speckling and subtle tonal variation that gives the surface a calm, consistent depth. Free from bold veining, the fine granular detail works quietly across the slab, adding warmth and texture without any single element demanding attention. At 20mm, the slab brings genuine structural weight to match its understated presence.
The ivory tone is what makes Crema Avorio particularly effective in spaces that value light and cohesion over drama. It brightens a room without feeling stark, adds warmth without feeling heavy, and sits comfortably alongside almost any material palette. Timber, stone accents, and both warm and cool metal fixtures all find their place around it naturally.
At 20mm, Crema Avorio is well suited to outdoor benchtops, pool surrounds, and alfresco areas where a warm, neutral surface needs to perform reliably under outdoor conditions without losing its refined finish.
Resistant to heat, staining, and scratching. No sealing, no special products, no maintenance routine to follow.
Best For: Outdoor benchtops, kitchen benchtops, bathroom vanities, splashbacks, flooring, wall cladding
Visit our Sydney or Newcastle showroom to see the Crema Avorio sintered stone slab in person and find the right fit for your project
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Crema Sabbia Sintered Stone
Crema Sabbia sintered stone opens with a warm sandy beige base and fine granular detail that gives the surface a natural, grounded quality without relying on veining or pattern to carry it. The subtle speckling and gentle tonal variation move across the slab in a way that feels honest and unhurried. At 20mm, it has the thickness to suit the most demanding applications without any finish drop.
Where some neutral stones feel cool and clinical, Crema Sabbia feels warm. The sandy beige tone brings a natural brightness to a space that feels welcoming rather than stark. It works particularly well in open-plan interiors where a consistent, cohesive surface across flooring and wall cladding creates a sense of flow and continuity throughout.
At 20mm, Crema Sabbia handles pool surrounds, outdoor entertaining areas, and heavy traffic commercial flooring where a warm, reliable surface needs to hold its finish season after season.
The 20mm format handles benchtops, flooring, and wall cladding with ease. Resistant to heat, staining, and scratching, with zero sealing ever needed.
Best For: Outdoor benchtops, pool surrounds, kitchen benchtops, bathroom vanities, splashbacks, flooring, wall cladding
Visit our Sydney or Newcastle showroom to see the Crema Sabbia sintered stone slab in person and find the right fit for your project.
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Flume Grey Sintered Stone
Flume Grey sintered stone presents a warm grey tone with a clean, uniform surface and minimal patterning that lets the colour do the work. There is a quiet authority to it that suits contemporary and minimalist interiors where restraint is a deliberate design choice rather than an afterthought. At 20mm, the slab has the presence and durability to match its understated character.
The neutral grey palette makes Flume Grey one of the more adaptable surfaces in the sintered stone range. It sits comfortably alongside white cabinetry, timber accents, concrete finishes, and dark metal hardware without pulling focus in any direction. A reliable foundation that makes the design around it feel more considered.
At 20mm, Flume Grey is well suited to high-traffic benchtops, outdoor entertaining areas, and commercial applications where a clean, consistent surface needs to perform reliably over the long term.
Resistant to heat, staining, and scratching, with zero sealing required. Built for daily use across both interior and exterior applications.
Best For: Outdoor benchtops, kitchen benchtops, bathroom vanities, splashbacks, feature walls, large format flooring
Visit our Sydney or Newcastle showroom to see the Flume Grey sintered stone slab in person and find the right fit for your project
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Rosavera Sintered Stone
Rosavera sintered stone arrives with a surface that is immediately distinctive. Soft blush and rose tones form the foundation, interwoven with cool grey fragments and bold veining in muted green across a brecciated pattern that creates real depth and movement. At 20mm, the slab has the physical weight to support the visual statement it makes.
The interplay of colour across Rosavera is what sets it apart from safer, more predictable surfaces. Blush and rose tones sit alongside cool grey and muted green in a composition that feels bold without losing its sophistication. It pairs naturally with both warm and cool interior schemes, brass and brushed nickel fixtures both find their footing alongside it, and the palette is balanced enough to anchor a space without overwhelming it.
At 20mm, Rosavera suits feature benchtops, vanities, and outdoor entertaining areas where a surface with genuine character needs to perform as well structurally as it does visually.
Resistant to heat, staining, and scratching, with no sealing required and no ongoing maintenance to think about.
Best For: Feature walls, outdoor benchtops, kitchen benchtops, bathroom vanities, splashbacks, commercial applications
Visit our Sydney or Newcastle showroom to see the Rosavera sintered stone slab in person and find the right fit for your project.
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Violetta Sintered Stone
Violetta sintered stone opens with a soft white base and sweeping veining in deep burgundy and violet tones that move across the surface with a confidence and drama that is genuinely hard to look away from. At 20mm, the slab brings a structural solidity that gives the striking aesthetic the physical foundation it deserves.
The burgundy and violet veining is pronounced and directional, introducing depth and warmth to the white base in a way that feels opulent without being excessive. It pairs naturally with natural timbers, brushed metals, and dark interior schemes where the rich tones can be properly appreciated. In lighter, more neutral spaces, it becomes the focal point around which everything else is arranged.
At 20mm, Violetta suits feature benchtops, outdoor entertaining areas, and commercial applications where a surface with real visual presence needs to perform structurally as well as aesthetically.
The 20mm format handles benchtops, flooring, and wall cladding with ease. Resistant to heat, staining, and scratching, with zero sealing ever needed.
Best For: Feature walls, outdoor benchtops, kitchen benchtops, bathroom vanities, splashbacks, flooring
Visit our Sydney or Newcastle showroom to see the Violetta sintered stone slab in person and find the right fit for your project.
20mm Sintered Stone Slabs
20mm sintered stone slabs are a practical, high-performance surfacing option for Sydney kitchens, outdoor alfresco areas, and commercial spaces. The extra thickness resists edge chipping, holds its finish without sealing or ongoing treatment, and delivers a substantial edge profile suited to benchtops and waterfall islands. From soft ivory tones to warm concrete finishes and designs with subtle patterns and soft veining, our 20mm sintered stone range is available at our Greenacre and Beresfield showrooms.
Why Choose 20mm Sintered Stone Slabs?
Built to Handle Daily Impact
20mm sintered stone is produced by compressing and firing natural minerals under extreme heat and pressure. The result is a dense, non-porous surface that handles heavy cookware, daily impact, and continuous commercial use. The additional thickness provides greater edge strength and resistance to chipping compared to thinner slab formats.
Heat, Scratch, and Stain Resistant
20mm sintered stone is resistant to heat, resistant to scratching, and resistant to staining in everyday use. Spills, including red wine, coffee, and cooking oils, wipe away without penetrating the surface. No sealing is required before installation or at any point afterwards.
UV-Stable for Outdoor Installations
20mm sintered stone holds its colour in direct sunlight without fading or discolouring, and does not require protective coatings for outdoor use. For outdoor sintered stone slabs used in alfresco kitchens, BBQ benchtops, and poolside areas across Sydney, this makes it a practical long-term choice for exposed environments.
A Long-Term Solution Without Ongoing Costs
The investment in 20mm sintered stone slabs reduces ongoing maintenance and replacement costs. No sealant, no specialist cleaners, and no periodic restoration are required. The surface holds its finish over time with straightforward day-to-day cleaning.
Substantial Visual Presence
The thickness of 20mm sintered stone creates a benchtop edge profile that suits both waterfall islands and standard kitchen installations. The additional depth reads clearly on horizontal surfaces and adds visual weight to any renovation where the benchtop is a key design element.
Formats and Finishes
Where 20mm Sintered Stone Performs Best
Our 20mm sintered stone slabs suit a range of residential and commercial applications where surface strength and design quality are both non-negotiable.
Kitchen Benchtops: 20mm sintered stone is resistant to heat and resistant to scratching in everyday use, making it a practical choice for Sydney kitchen benchtops. Designs with a marble aesthetic, soft veining, or minimal movement are commonly selected for modern kitchen renovations across Sydney and Newcastle.
Waterfall Islands: The edge profile of a 20mm slab suits waterfall island applications where thickness and visual weight are part of the design. The additional depth creates a clean, architectural finish on vertical island faces.
Outdoor Alfresco and BBQ Areas: Outdoor sintered stone slabs in 20mm are UV-stable, frost-resistant, and resistant to moisture, handling the full range of Australian weather conditions without fading or deteriorating over time.
Commercial Spaces: For hospitality fitouts, retail counters, and commercial bathrooms, 20mm sintered stone holds up under continuous heavy use and commercial cleaning products without any reduction in surface quality over time.
How to Clean and Maintain Your 20mm Sintered Stone
Regular Cleaning: Warm water and a soft cloth cover most day-to-day cleaning. A mild household detergent handles tougher marks without affecting the surface.
Wipe Up Spills Promptly: Sintered stone is non-porous, but wiping spills promptly prevents residual buildup and keeps surfaces looking their best.
Avoid Harsh Chemicals and Abrasives: pH-neutral, non-abrasive cleaners are recommended. Acidic or bleach-based products can dull the surface finish over time.
Use Cutting Boards and Trivets: 20mm sintered stone is resistant to heat and resistant to scratching in everyday use, but using cutting boards and trivets is a sensible habit that protects both the surface and your knives over time.
Why Choose Avant Stone?
Our family-owned business has been supplying natural stone and sintered stone slabs to Sydney and Newcastle for over 20 years. Every slab in our collection is hand-picked, and our team brings experience to every project consultation, from matching veining across a kitchen island to advising on the right thickness for an outdoor installation.
Speak with our team today and get advice tailored to your project. View full slabs before you decide at our Sydney or Newcastle showroom.
Sydney: 22 Reservoir Avenue, Greenacre NSW 2190 | 02 9817 0037 Newcastle: 1/8 Arunga Dr, Beresfield NSW 2322 | 02 8321 0742
Frequently Asked Questions
What is 20mm sintered stone best suited for?
20mm sintered stone is recommended for kitchen benchtops, waterfall islands, outdoor alfresco areas, and commercial fitouts where surface strength and edge durability are priorities. For splashbacks and wall cladding, our 12mm sintered stone range is the better fit.
Does 20mm sintered stone need sealing?
No. The surface is non-porous, so no sealant is required at installation or at any point during its life, indoors or outdoors.
Is 20mm sintered stone suitable for outdoor use?
Yes. UV-stable, frost-resistant, and resistant to moisture, our 20mm outdoor sintered stone slabs hold their colour and finish under full sun exposure and Australian weather conditions without any protective treatment
Where can I find a sintered stone supplier in Sydney?
Avant Stone stocks our full 20mm sintered stone range at our Greenacre showroom in Sydney and our Beresfield showroom in Newcastle. Both locations display full-size slabs so you can see every design before making your decision.
How much do 20mm sintered stone slabs cost in Sydney?
Pricing varies based on design and project requirements. We stock options across a range of price points. Visit our Sydney showroom in Greenacre or our Newcastle showroom in Beresfield for a detailed quote tailored to your specific project.











