Marshalls and its subsidiaries are engaged in the manufacture and supply of landscape, driveway and garden products using a range of materials including concrete, natural stone, iron, steel, wood, glass and polyurethane, to the domestic and public sector and commercial end markets. Co. operates its own quarries and manufacturing sites throughout the United Kingdom, including a national network of manufacturing and distribution sites. Products are distributed from this network of sites either to customers' depots or, at their request, direct to site.