A joint of floor panels

A joint of floor panels, wherein the joined floor panels (1) are in the form of rectangular plates comprising:

• an upper surface (2) and a lower surface (2a) parallel to it, designed to be laid on the subfloor,
• two long edges (3, 3′) of side surfaces (4, 4′),
• two short edges (5, 5′) of side surfaces (6, 6′),
• complementary interlocking means (10, 11) formed on the side of the edges (5, 5′) joined to each other,
• wherein the complementary interlocking means (10, 11) formed on the side of the short edges (5, 5′) joining each other comprise joining parts made as a male joining part (9) and a female joining part (12) and have a vertically active concave locking part (13) and a convex locking part (14), as well as slanted guiding surfaces (15, 16), and
• wherein a bendable part (7) is formed in the lower surface (2a) of the floor panel (1) across its entire width, wherein the bendable part (7) of the floor panel (1) comprises a plurality of adjacent recesses (8, 8′) formed in the lower surface (2a), next to the male joining part (9), which are inclined relative to the short edge (5′) of the side surface (6′), allowing the angular deflection of the male joining part (9) to be increased, relative to the horizontal plane, during its interlocking with the female joining part (12) at the short edges (5, 5′), characterized in that
• the recesses (8, 8′) have decreasing heights, with the recesses (8, 8′) having the smallest height (h2) on the side of a male coupling element (20) located at the first long edge (3) of the side surface (4) and the largest height (h1) on the side of a female coupling element (21) located at the second long edge (3′) of the side surface (4′).