Dear Andrea, When considering compact shelving, do bear in mind environmental concerns and the current state of your existing HVAC system. Discuss with you vendor the best ways to keep air flowing through the compact shelving to avoid problematic pocket environments. All the best, Karen -- Karen O'Connell Preservation Librarian Bibliographer for Art, Music & Theater Lauinger Library, Georgetown University 202-687-7585; [log in to unmask] __________________________________________________________________ Mail submissions to [log in to unmask] For information about joining ARLIS/NA see: http://www.arlisna.org/join.html Send administrative matters (file requests, subscription requests, etc) to [log in to unmask] ARLIS-L Archives and subscription maintenance: http://lsv.uky.edu/archives/arlis-l.html Questions may be addressed to list owner (Judy Dyki) at: [log in to unmask]