Class B Engineering 65mm Perforated

Benefits of Class B Engineering 65mm Perforated

With a history dating back over 150 years, Butterley bricks can be found in buildings as diverse St Pancras station and modern housing developments. We manufacture it in a wealth of red, buff, yellow, brown, blue and grey colours, and in several textures: smooth, with a consistent, uniform character; light textured, which is modern and uniform, with an indented or printed finish; heavy textured, with a harder and rougher texture for a more rustic brick with a consistent finish; and tumbled, a distressed and irregular shape associated with reclaimed bricks.

Class B engineering bricks are sold as “utility” bricks to conform to a high technical specification. Class B Engineering bricks are not sold as facing bricks and therefore may vary in colour and/or texture, and occasionally contain bricks with superficial blemishes such as chipping, hairline cracks and crazing etc. To this end the imagery is for indicative purposes only.

Class B Engineering 65mm Perforated specifications

Manufactured To BS EN 771-1
Height 65 mm
Compressive Strength 75 N/mm²
Configuration Vertically Perforated 18-28% Voids
Dimensional Tolerance Range R1
Durability Ratng F2
Water Absorption 7%
Textures Smooth
Width 215 mm
Depth 102.5 mm
Thermal Conductivity (λ10,dry) 0.79
Dimension Tolerance Mean T2
Dry Weight 2.5 kg
Soluble Salts S2
Manufacture Type Wirecut
Factory Accrington

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