Good Morning, Many people generously responded to my earlier query about loading capacity. There seems to be a consensus about 150lbs. per sq. foot for regular stacks and 300 lbs. per sq. foot for compact shelving. Many provided sources for this: Planning academic and research library buildings Author: Leighton, Philip D. Format: Book Published: Chicago : American Library Association, 1999. Language: English and B.J. Irvine's book: Facilities Standards for Art Libraries and Visual Resources Collections - on page 40 the weight-bearing load for art book stacks is examined. This is quoted from that publication: "The weight-bearing load for art book stacks should conform to the standard 150lb. per square ft. (7.324 kN/m2). For compact moveable shelving, the standard is 300 lb. per sq. foot (14.647kN/m2) (Metcalf 1986, 327). (See also American National Standards Institute 1972; Cohen and Cohen 1979, 89-92; Eyman 1987, 97; and Smith 1987.)" Appendix III is also devoted to data for stacks. I now want to know if anyone has any wisdom to share as to how to arrange the collection and reading tables in a circular space of 3077 sq. feet. One idea I had was a radial or pinwheel arrangement with stacks alternating with tables to achieve an alcove arrangement a la Avery Library. Any thought on this? Many thanks, Michael Michael Young Art & Design Librarian Homer Babbidge Library University of Connecticut Storrs, Connecticut 06269 Tel. 860-486-4953 Fax 860-486-6100 __________________________________________________________________ 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]