Our museum is undergoing the process of renovating one of our galleries and we would like to include angled panels in front of some of our exhibits. We envision them at approximately waist high . . . but I am short so my waist high is not the next person's waist high. Can anyone tell me if there is a recommended optimum height for the top and bottom edges of these types of panels, as well as a recommended degree of angle for them?  I have found plenty of references for vertically mounted panels . . . just not angled panels.  We have a limited budget and all of the work is being done in house.