7.5N 215mm Cavity Block

7.5N 215mm Cavity Block for use in the construction of high strength retaining walls, for external walls, cavity walls, partition walls and party walls.

• Reduced unit weight for ease of handling
• Reduced floor/ foundation loadings
• High levels of fire resistance and sound insulation
• 7.5 Newton compressive strength.
• 215mm x 215mmx 440mm
• Also known as a Hollow block.