Understanding Porcelain Slab Sizes for Interior Spaces

When curating a luxurious interior, every material and detail must be considered carefully—including the exact dimensions of surface materials like porcelain slabs. If you’ve found yourself asking, what size do porcelain slabs come in, you’re not alone. Whether you’re a discerning homeowner seeking refined sophistication or a design professional specifying premium surfaces, porcelain slab sizing plays a pivotal role in the successful execution of any interior project.

At Zicana Boutique, we specialize in rare, luxurious surface materials—including an expansive selection of high-end porcelain. Let’s explore the standard and custom sizes available for porcelain slabs, their applications, and how to select the right dimensions for your vision.

Standard Porcelain Slab Sizes

Porcelain slabs are renowned for their seamless aesthetics, high durability, and versatility. In design-forward interiors—particularly kitchens, bathrooms, and feature walls—these ultra-slim surfaces offer uninterrupted flow and elegance. Understanding their size options is crucial for discovering the best fit for your space.

The most common porcelain slab sizes for interior applications include:

• 1200 x 2400 mm (approx. 47” x 94”) – A classic size suitable for bathroom walls, kitchen backsplashes, and smaller countertops.
• 1200 x 2600 mm (approx. 47” x 102”) – Ideal for vertically oriented feature installations or tall spaces, such as floor-to-ceiling fireplaces.
• 1200 x 2780 mm (approx. 47” x 109.5”) – Common in elevated bathroom and commercial interiors.
• 1600 x 3200 mm (approx. 63” x 126”) – One of the largest available sizes in the industry, perfect for seamless kitchen islands, shower walls, and large design panels.

Zicana Boutique proudly offers porcelain slabs in these and other dimensions through our curated Porcelain Slabs Collection. Our portfolio includes leading global brands known for design, quality, and innovation.

Thickness Options and Edge Profiles

Beyond length and width, choosing the right thickness is essential. Porcelain slabs typically come in:

• 3 mm to 6 mm: Lightweight and commonly used for wall cladding and decorative facades.
• 12 mm: A robust thickness for kitchen countertops and furniture applications.
• 20 mm: Available in select collections, suitable for both indoor and outdoor countertops that demand durability.

For kitchen installations, our Made-to-Measure Custom Countertops service ensures edge profiles and finishes are tailored to your exact specifications—down to millimeter precision.

Custom Porcelain Slab Sizes Available at Zicana Boutique

At Zicana Boutique, we understand that no two spaces—or clients—are the same. That’s why in addition to standard cuts, we offer bespoke sizing on many of our porcelain collections, including:

• Raphael Porcelain Collection – Designed for dramatic, uninterrupted installations in kitchens and living areas.
• Laminam Collection – Offers architectural porcelain slabs with flexible sizing for walls and furniture cladding.
• Fiandre Collection – Italian-made, sintered porcelain slabs that allow design-focused flexibility in thickness and finish.

These customizations allow both trade professionals and homeowners to achieve refined design continuity—from countertops and waterfall panels to integrated sinks or shelving units.

Where to Use Large-Format Porcelain Slabs

Thanks to their resilience to heat, scratching, and UV exposure, large-format porcelain slabs are as versatile as they are visually impactful. Interior uses include:

• Kitchen islands and countertops – For a sleek look with minimal grout lines.
• Accent walls and fireplaces – Elevate any room with a gallery-like aesthetic.
• Shower surrounds and bathroom vanities – Hygienic and moisture-resistant.
• Furniture applications – Including custom dining tables, sideboards, and consoles.

Explore porcelain-crafted designs in our exclusive Furniture & Decor Collection, where functionality meets fine art.

To make your project even more rewarding, take advantage of our Exclusive Offers Collection or Use Promo Code WELCOME100 for $100 off any order over $1,000.

FAQs: Porcelain Slab Sizes and Use Cases

What is the largest porcelain slab size available?

The largest readily available porcelain slab size is typically 1600 x 3200 mm (63” x 126”). This size is perfect for seamless island countertops or expansive wall cladding projects. Zicana Boutique offers this and other sizes across brands like Laminam and Florim.

Can porcelain slabs be custom-cut for unique applications?

Absolutely. With our Made-to-Measure Countertop service, Zicana Boutique can custom cut porcelain slabs to precise dimensions, offering complete freedom for integrated sinks, waterfall edges, and furniture-grade accents.

What is the ideal thickness for porcelain countertops?

A 12 mm thickness is standard for most interior countertops, striking the perfect balance between durability and streamline elegance. For heavy-use kitchen islands, some clients may opt for 20 mm porcelain when available.

Are larger slabs better than tiles for bathrooms?

Larger format porcelain slabs dramatically reduce grout lines, enhancing the clean aesthetics and ease of maintenance in high-humidity spaces like bathrooms. Explore options in our Bathroom Decor Collection.

Design Beyond Dimensions

At Zicana Boutique, we believe true luxury lies in detail and personalization. Now that you understand what size porcelain slabs come in, you’re better equipped to select the right surfaces for your upscale living or commercial environment—whether you're working with our sleek 6 mm verticals or opt for a dramatic 12 mm slab island centerpiece.

We invite you to begin your design journey by browsing our curated Porcelain Slabs Collection, or experience unparalleled savings on hand-selected materials through our Exclusive Offers Collection. And don’t forget—Use Promo Code WELCOME100 for $100 off any order over $1,000.

Have questions about sizing, material composition, or installation details? Our concierge specialists are here to guide you toward the ideal solution. Contact us today to realize your vision in porcelain perfection.