It is estimated that every five seconds, one BILLY bookcase is sold somewhere in
the world. Pretty impressive considering we launched BILLY in 1979. It’s the
booklovers choice that never goes out of style. You can use the extra shelves to
make room for more stuff when your storage needs change. Fits BILLY bookcase 40
cm wide and 28 cm deep. The shelf does not fit bookcases purchased in the spring
of 2014 or earlier. Shelf supports are included. Material: Particleboard, Paper
foil, Plastic edging. 

MEASUREMENTS: 

Width: 36 cm. Depth: 26 cm. Thickness: 2 cm. Max. load/shelf: 14 kg.