215mm Hollow Dense Concrete Block 7N

£4.92 inc. VAT. (£4.10 ex. VAT.)

The 215mm Hollow Dense Concrete Block is a high-strength (7.3N) masonry unit designed for heavy-duty structural applications. Featuring large voids that reduce weight and allow for vertical reinforcement, these blocks are ideal for constructing retaining walls, agricultural buildings, and secure perimeter walling.

SKU: H00001130 Categories: , ,

Description

Our 215mm Hollow Dense Concrete Blocks provide a robust solution for projects requiring high stability and load-bearing capacity. While they share the external dimensions of a standard wall (440mm x 215mm x 215mm), the internal hollow cores make them lighter to handle than solid equivalents and provide a key functional advantage.

These voids can be filled with poured concrete and reinforced with steel rebar (reinforcement bars) to create extremely strong, rigid walls capable of withstanding significant lateral pressure. This makes them the industry standard for building retaining walls, swimming pools, and large agricultural sheds. They are also widely used for standard masonry work where a durable, cost-effective wall is required.

Product specification

  • Product Name: Hollow Dense Concrete Block
  • Dimensions: 440mm x 215mm x 215mm (Standard "9-inch" block width)
  • Compressive Strength: 7.3N/mm² (Structural Grade)
  • Configuration: Hollow / Cellular (Two large voids)
  • Weight: Approx. 25kg – 30kg (Lighter than solid 215mm blocks)
  • Pack Size: 40 Blocks (Standard Pallet)
  • Material: Dense Aggregate Concrete
  • Reaction to Fire: Class A1 (Non-combustible)
  • Key Benefit: Voids allow for steel reinforcement and concrete infill.
  • Application: Retaining walls, agricultural buildings, boundary walls, and reinforced masonry.

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