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Firwood Timber & Plywood Company Ltd

140mm Solid Dense Concrete Blocks

Product code: 140MMCONCSOLID
853 in stock
  • High strength
  • Solid & durable
  • Excellent acoustic insulation
  • Thermal efficiency

£2.75 inc VAT

£2.29 ex VAT

Product Description

Our Solid Dense Concrete Blocks are engineered for strength, durability, and sustainability. With a high compressive strength of 7.3N/mm², they’re ideal for demanding load-bearing applications, both above and below ground. These dense masonry units feature a solid core with no voids, offering superior acoustic and thermal insulation—making them a reliable, cost-effective choice for a wide variety of construction projects.
Manufactured using responsibly sourced aggregates and a reduced carbon mix, our blocks deliver up to 50% lower embodied carbon compared to traditional OPC (Ordinary Portland Cement) blocks. They comply with BS EN 771-3:2011 standards and are finished to a paint-grade texture for clean and professional results.

Key Features:

  • High Strength: 7.3N/mm² compressive strength—suitable for structural and load-bearing walls.
  • Low Carbon: Up to 50% lower carbon footprint than standard OPC blocks.
  • Sustainable Aggregates: Made with responsibly sourced, high-quality materials.
  • Superior Thermal Mass: Enhances year-round energy efficiency and comfort.
  • Excellent Sound Insulation: Reduces both internal and external noise.
  • Paint-Grade Finish: Clean, smooth surface ready for direct decoration.
  • Versatile Application: Use for cavity walls, partitions, external/rendered walls, beam & block flooring, boundary walls, and more.
  • Fire & Ground Suitability: Suitable for DS1, DS2, DS3 ground conditions and high-rise walls (over 3 storeys or 2.7m in height).

Technical Specifications:

  • Compressive Strength: 7.3 N/mm²
  • Density Range: 1800–2100 kg/m³
  • Compliance: BS EN 771-3:2011
  • Finish: Close-textured, paint-grade
  • Applications: Load-bearing walls, cavity walls, partitions, boundary walls, and more
  • Environmental Rating: Low carbon, sustainable aggregate content

Build with strength. Build with sustainability. Choose our Solid Dense Concrete Blocks for performance you can depend on.

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