4 pine corner shelves which fit IKEA Ivar system (Central Lancaster LA1)

4 pine shelves which fit IKEA Ivar system or which could be repurposed in some way. Sound condition but some sun fade and in need of a clean. Each measures approximately 22’’X 22.5’’ X 3/4’’ thick - but with cutouts (see photos)(56cms X 57cms X 1.8cms thick)