Businesses in the glass and glass products category manufacture, process, distribute or supply glass for buildings, interiors, vehicles and other uses. Products may include flat and float glass, double-glazed units, windows, doors, mirrors, shower screens, glass partitions, balustrades, shelves and decorative panels. Some suppliers also provide specialist glass such as toughened, laminated, fire-resistant, patterned or tinted glass, as well as glass containers and tableware. Services can include measuring, cutting, polishing, drilling, shaping and finishing glass to suit a particular design or opening. Businesses may advise on the choice of glass for safety, privacy, insulation or appearance, and some provide delivery, replacement glazing or installation. Work can be supplied to householders, builders, architects, interior designers and commercial premises, with products made to standard sizes or manufactured to specified dimensions.