This industry comprises establishments primarily engaged in retailing a general line of home repair and improvement materials and supplies, such as lumber, doors and windows, plumbing goods, electrical goods, floor coverings, tools, houseware, hardware, paint and wallpaper, and lawn and garden equipment and supplies. The merchandise lines are normally arranged in separate sections. These establishments may provide installation and repair services for the merchandise they retail.

This industry comprises establishments primarily engaged in retailing paint, wallpaper and related supplies.

This industry comprises establishments, known as hardware stores, primarily engaged in retailing a general line of basic hardware items, such as tools and builders' hardware. These establishments may sell additional product lines, such as paint, houseware and garden supplies, that are not normally arranged in separate departments.

This industry comprises establishments primarily engaged in retailing specialized lines of building materials. These establishments may provide installation services in addition to retailing.