Summit Materials

Summit Materials, based in Denver, Colorado, produces aggregates, cement, ready-mixed concrete and asphalt in the United States and western Canada.

The company's products are supplied in bulk and to site for roads, bridges, buildings and infrastructure, where strength, durability and regularity of supply are decisive for contractors and specifiers.

For a materials directory, its interest lies in the heavy-product range and the regional coverage of plants and quarries, which determine lead times, haulage costs and availability in each market.