Patent attributes
A set of panel-shaped elements includes a first panel-shaped element, a second panel-shaped element, and a third panel-shaped element. The first panel-shaped element includes at least one recess that extends through the first panel-shaped element from a first side to a second side. The second panel-shaped element includes a first profiled portion, which is configured to extend into the recess from the first side of the first panel-shaped element. The third panel-shaped element includes a second profiled portion, which is configured to extend into the recess from the second side of the first panel-shaped element and for locking engagement with the first profiled portion. The set of panel-shaped elements can be assembled using a method where the third element is moved into locking engagement with the first and second elements.