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Description The Wienerberger Red Engineering Class B brick, meticulously crafted for durability and functionality. Engineered with precision, this perforated, wirecut brick seamlessly blends robust strength with minimal water absorption. Specifically designed for structural integrity rather than aesthetic appeal, engineering bricks prioritise physical properties over appearance. With high compressive strength and low water absorption, they are ideal for structural applications. However, for projects where visual appeal is paramount, facing bricks are recommended. Please note that the number of perforations (vertical holes) may vary. Key Features: Texture: Smooth Colour: Red Water Absorption: 7% Compressive Strength: >=50N/mm2 Soluble Salts: S2 PLEASE NOTE: The image is for representative purposes only, if unsure please order a sample Delivery conditions apply, see delivery tab for more details.