4 in. x 8 in. x 18 in. 2-Hole Concrete Masonry Unit, Gray | CMU-4X8X18-GR

This 4 in. x 8 in. x 18 in. 2-Hole Concrete Masonry Unit, Gray is suited for above-grade masonry walls and foundation applications where dependable concrete construction is required. The uniform shape, color, and texture help maintain consistent courses during installation, while its weather-resistant concrete construction supports long-term outdoor use. Weighing approximately 36.5 lb. per block, it provides substantial structural mass while remaining manageable for experienced DIYers and tradespeople using appropriate handling practices.

• Durable concrete construction provides reliable performance for masonry and construction applications
• ASTM C 90 compliance makes this block suitable for specified concrete masonry construction
• A 1,900 PSI compression strength supports demanding residential and professional building projects
• Uniform dimensions, color, and texture help create consistent masonry courses during installation
• The hollow two-core design provides a practical standard block format for masonry wall construction