The 140mm Thermalite Shield Block 3.6N (80) is a strong, lightweight and thermally efficient building block ideal for structural applications where enhanced insulation is required. With its low thermal conductivity and high strength-to-weight ratio, it’s perfect for use in load-bearing walls, partition walls, and foundations in both domestic and commercial construction.

These 140mm Thermalite blocks are designed to help meet current energy efficiency standards while also improving on-site productivity due to their easy handling and workability. Whether you're cutting, chasing or fixing to them, they respond well and reduce build time compared to denser alternatives. Their resistance to moisture and excellent airtightness also contribute to better overall building performance.

If you're looking for reliable Thermalite blocks 140mm in size, or need 140mm aerated blocks for efficient wall construction, this product delivers long-lasting performance with ease of use. Available at Mitcham Builders Merchants, it’s a trusted choice for builders seeking quality and consistency on every project.