The commitment rating describes the amount of time needed for a climb. This rating should take into account not only the climb itself, but the approach and exit as well. Always allow some extra time for unexpected climbing conditions, or for a fellow climber who might not be as quick as others.

The commitment rating scale is as follows:

A:  A few hours or less

B:  Half day

C:  Full day

D:  Long day, over 10 hours, hike to tree

E:  Overnight camp out (bivouac)

F:  Expedition into remote area with several days of tree-top camping