Is is 5ft roost that is 2ft off the floor adequate?

[wvchix]

Is is 5ft roost that is 2ft off the floor adequate for 2 Silkies, 3 mixed Bantams, a New Hampshire, Barred Rock, and a Leghorn?

 

[KDK1]

Seeing how your silkies probably won't use it, it should be sufficient.