Coverlam — Porcelain Slabs Without LimitsCoverlam — Porcelain Slabs Without Limits
Ultra-Large Porcelain Slabs Up to 120x360cm — Minimal Grout, Maximum Impact, Unlimited Design Possibility.
The Art of the Seamless SurfaceThe Art of the Seamless Surface
Coverlam was created to solve a specific problem: the visual fragmentation that grout lines impose on beautiful surfaces. While most tile manufacturers treat large format as one option among many, Coverlam made it their entire mission — developing proprietary pressing technology, handling systems, and installation methods specifically for porcelain slabs that push the boundaries of size.
The result is a range of ultra-large porcelain slabs available in formats up to 120x360cm and thicknesses as slim as 3.5mm. These are not tiles — they are architectural surfaces. A single Coverlam slab can cover a full-height backsplash, wrap a kitchen island in one seamless piece, or clad an entire shower wall without a single joint. The effect is transformative: marble, stone, concrete, and metal looks reproduced with photographic fidelity across surfaces that read as continuous planes of natural material.
Coverlam is part of the Grespania Group, leveraging the parent company's four decades of ceramic manufacturing expertise and state-of-the-art Castellón production facilities. Baystone is proud to be the Bay Area source for Coverlam's complete range of large-format porcelain solutions, with display slabs and expert consultation available at our San Jose showroom.
Coverlam was created to solve a specific problem: the visual fragmentation that grout lines impose on beautiful surfaces. While most tile manufacturers treat large format as one option among many, Coverlam made it their entire mission — developing proprietary pressing technology, handling systems, and installation methods specifically for porcelain slabs that push the boundaries of size.
Why CoverlamWhy Coverlam
Slabs Up to 120x360cmSlabs Up to 120x360cm
Coverlam offers some of the largest porcelain slabs available anywhere — up to 120x360cm. A single slab can cover a full-height shower wall, an entire kitchen backsplash, or wrap a waterfall island without a single joint. The visual impact is closer to natural stone panels than traditional tiling.
Ultra-Thin 3.5mm OptionsUltra-Thin 3.5mm Options
Select Coverlam collections are available in thicknesses as low as 3.5mm — less than half the weight of standard 9mm porcelain. This opens possibilities for cladding existing surfaces without demolition, furniture wrapping, and applications where structural load is a concern.
Photographic Surface FidelityPhotographic Surface Fidelity
Coverlam's advanced digital printing achieves photographic reproduction of marble, stone, and concrete across the full slab surface. Because the format is so large, the veining, texture, and colour variation reads as genuinely organic — not the repetitive pattern that betrays smaller format porcelain tiles.
Countertop to CladdingCountertop to Cladding
Coverlam slabs work across every application: kitchen countertops and waterfall islands, full-height bathroom walls, shower panels, floor installations, exterior cladding, and furniture surfaces. One material, one aesthetic, unlimited applications.
Awards & HonorsAwards & Honors
Coverlam Patent RecognitionCoverlam Patent Recognition
Proprietary ultra-thin pressing technology recognized by the Spanish Ceramic Association
ISO 14001 CertifiedISO 14001 Certified
Environmental management across Grespania production facilities
Red Dot Design NomineeRed Dot Design Nominee
For innovation in large-format architectural surfaces
Inspiration GalleryInspiration Gallery
Material GuideMaterial Guide
Coverlam 3.5mmCoverlam 3.5mm
The ultra-thin flagship. At just 3.5mm thick, these slabs are ideal for lightweight facade cladding, furniture wrapping, and renovation overlays where minimal added thickness is critical.
Coverlam 5.6mmCoverlam 5.6mm
Slightly thicker for added durability — suitable for floors, kitchen countertops, and bathroom walls. Still dramatically thinner and lighter than conventional porcelain.
Coverlam Top (20mm)Coverlam Top (20mm)
Heavy-duty 20mm outdoor porcelain pavers with R11 anti-slip rating. Frost-proof, UV-stable, and load-bearing — engineered for terraces, pool surrounds, and high-traffic exterior spaces.
Coverlam Dekton-GradeCoverlam Dekton-Grade
Sintered porcelain surfaces with exceptional resistance to scratches, stains, heat, and UV. Suitable for kitchen countertops, outdoor kitchens, and commercial bar tops.
Why Choose Coverlam?Why Choose Coverlam?
Slabs up to 120x360cm — the largest format porcelain available, creating truly seamless surfaces that rival natural stone panels
Ultra-thin 3.5mm options — half the weight of standard porcelain, ideal for cladding existing surfaces and weight-sensitive applications
Part of the Grespania Group — four decades of Spanish ceramic manufacturing expertise applied exclusively to large-format innovation
Photographic surface fidelity across ultra-large formats — marble, stone, and concrete looks that read as genuinely organic, not digitally repetitive
Client TestimonialsClient Testimonials
Frequently Asked QuestionsFrequently Asked Questions
Experience Coverlam In Person.Experience Coverlam In Person.
Visit our San Jose showroom to see the full Coverlam catalogue. Touch the materials, compare finishes, and speak with our brand-certified consultants. We typically respond within 24 hours.