Evalast Aggregate Coursing Unit

Evalast Coursing Units offer the same features as our Evalast Background dense concrete blocks, but are available in in 215mm x 100mm and 440mm x 140mm to save time and money when carrying out detailed blockwork. They are used for bonding and infilling above doors and windows and making up between joists.

Category: .

Product Description


  • High strength
  • Excellent sound insulation
  • Good thermal conductivity
  • Protect against pattern staining
  • BES 6001 Responsible Sourcing certification


Key Data

Compressive Strength: 22.5 N/mm²

λ Internal: 1.32 W/m.K

λ External: 1.42 W/m.K

Dry Density: 1900 kg/m³

Working Dimensions

Face dimensions (mm): 215 x 65, 440 x 65

Dimensions and Weights

Block thicknesses and weights at equilibrium density (for 440 x 215mm)

Height Length Width Dry Weight
65mm 215mm 100mm 2.9kg
65mm 440mm 140mm 8kg


Cavity Walls
Separating Walls