Peeling plaster from raw concrete gives character to an interior - giving it a minimal, undressed aesthetic. Sophisticated, timeworn and aged to perfection - this is Diablo. Born from a love of nature and a belief in natural, sustainable building practices, Diablo harks back to crumbling country piles, Venetian monastery walls, decaying 18th-century chateaus and the souks of Marrakech. Combining centuries-old knowledge in earth architecture with field experimentation, modern science and testing facilities, Diablo is a beautiful reimagination of plaster as a finish of the future. DIMENSIONS + Our standard ‘RTI’ panels are ‘Ready-To-Install’ panels. These are made to order at a set standard size of 1200mm x 2400mm* *dimensions are approximate and may differ either way by 50mm. WIDTH: 1200mm HEIGHT: 2400mm There are no bounds to what we can do and our CTO ‘Customised-To-Order’ panels are for bespoke commissions, incurring extra fees. Do contact us for more information on custom and bespoke projects. LEAD TIMES + 8–12 weeks, unless advised otherwise in writing. Due to the hand-crafted nature of our artisan individually produced pieces, unanticipated delays may occur. STORAGE + WATSON & GABB surfaces and panels should be stored where no moisture can attack them. Storage conditions should have a relative humidity of between 35% and 60% and be suitable for timber products. EXTRA PROCESSING & ADD-ONS + PLYWOOD SUBSTRATE + + £69.58 surcharge Plywood backing adds strength and support to the panel. Ideal for installations that need added stability or where the panel will be fixed mechanically. Best suited to kitchens, utility rooms, or commercial spaces where panels may be fixed to stud walls or need extra rigidity. EXTRA LARGE BOARD (3 X 3.5M IN HEIGHT) + + £139.15 surcharge For taller panels that go beyond standard size. A great option for impactful, large-scale designs that require seamless vertical coverage. Ideal for entrance halls, stairwells, feature walls, or double-height spaces. PATINA (ANTIQUE EFFECT) + + £251.56 per panel Aged metal look with character. This finish creates a rich, time-worn appearance that adds depth and uniqueness to each panel. Perfect for lounges, dining areas, bars, boutique retail, or anywhere a statement, heritage-inspired finish is desired. LACQUER + + £251.56 per panel A clear protective coating that helps maintain the finish, prevents tarnishing, and boosts durability — especially useful in high-touch areas. Recommended for kitchens, bathrooms, and commercial interiors where extra protection is needed. CUSTOM CUTTING TO SIZE + Price per job Panels cut to your exact dimensions, reducing waste and saving time on-site. Ideal for bespoke layouts or precision installs. SPRAYED LIQUID METAL (EDGES) + + £123.24 per linear metre Edges are hand-finished with real liquid metal to match the panel face, giving a continuous, high-end look across all sides. Great for open-plan living, reception areas, or anywhere the edges of panels are visible and contribute to the overall design. SPRAYED LIQUID METAL (BACKS) + + £1,152.99 per square metre A premium, textured finish made from real metal particles. Offers the look and feel of solid metal with more flexibility in application. Ideal for high-impact feature walls in living rooms, bedrooms, hotel lobbies, or retail spaces. SPRAYED PAINT (EDGES) + + £54.27 per linear metre Neatly painted panel edges for a clean, finished appearance. Ideal when panel sides are visible or part of the design. Well suited to kitchens, bathrooms, and wardrobes where panel edges are regularly exposed. SPRAYED PAINT (BACKS) + + £174.70 per square metre The back of the panel is sealed or painted to protect against moisture and corrosion — important for humid areas or exposed fixings. Essential for bathrooms, wet rooms, spa areas, or outdoor-covered installations. 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