Floorboard, system and method for forming a flooring, and a flooring formed thereof

Abstract From the Canadian patent

A system for forming a flooring is disclosed. The system comprises rectangular floorboards (1, 1') including first , and second types of floorboards (A B), on which first and second locking means are arranged in pairs on opposing short edges (5a, 5b) and long edges (4a, 4b), respectively and on which the locking means , of the first type of floorboard (A) along one pair of opposing joint edges is mirror inverted relative to the corresponding locking means along the same pair of opposing joint edges of the second type of floorboard (B). The system comprises a third of floorboard (C), which is so designed that a first one (5b) of its two short edges presents the first locking means …