The wingspan of the cheruvim was 20 cubits. One wing of the first cheruv was five cubits long and touched the wall of the House, while the other wing, also five cubits long, touched the wing of the other cheruv.
The cheruvim are to spread out their wings above, shielding the atonement cover with their wings, each facing its companion. The faces of the cheruvim are to be turned toward the atonement cover.