Mortar Type S: Complete Buying Guide 2026
Type S mortar is a high-strength masonry mortar designed for structural and below-grade applications. Its superior bond strength and resistance to soil pressure and wind loads make it the standard choice for retaining walls, foundations, and exterior masonry. In 2026, mortar type s prices average $12.00 per 80-lb bag, with a typical range of $8.00 to $16.00 depending on your region, supplier relationships, and order quantity.
When budgeting for a project using mortar type s, factor in approximately 10% additional material for waste, plus labor costs averaging $15.00 per 80-lb bag for professional installation. A typical project using this material runs approximately $600 including both materials and labor.
With an expected lifespan of 50 years, mortar type s represents a cost of approximately $0.24 per 80-lb bag per year of service life. This exceptional longevity makes it one of the most cost-effective materials when measured over its full lifespan.