BRIO is best known for their wooden toy trains, sold in Europe since 1958. Most are non-motorized and suitable for younger children. The cars connect with magnets and are easy to manipulate; in recent years, the range has been extended with battery powered, remote control, and 'intelligent track'-driven engines. BRIO licenses Thomas the Tank Engine wooden trains in some parts of Europe, but Mattel holds the Thomas license in the United States. Many competitors, such as Whittle Shortline, make products that are compatible with BRIO.
BRIO also sells BRIO-Mech construction kits. Long, thin wooden slats with evenly spaced holes are connected together with various fasteners made of colorful plastic. Young children can build sturdy and elaborate constructions.
BRIO also sold Theodore Tugboat toys. Released were the tugboats, the Dispatcher, Benjamin Bridge, Chester the Container Ship, and Barrington and Bonavista barges. These toys were discontinued in 2000, a year before the show was cancelled.