Good Afternoon Susan, As you requested.......If I were to recommend a single published resource to provide assistance in designing a 1500 square foot historical museum; I would recommend Raymond O. Harrison's Technical Requirements of Small Museums. Revised Edition. Techical Papers no. 1 Ottawa: Canadian Museums Association, (my bookshelf has the 1969 edition -- hopefully, it has been revised since then). This 27 page "gem" of a publication would be very useful. With regards to percentages of floor space, here's my two cents: 1.) 30% exhibition galleries and public programming areas (such as a classroom or meeting area); 2.) 30% collection storage and processing areas ; 3.) 40% everything else (hallways, lobby, museum retail area and retail storage, non-collections storage, restrooms, heating and cooling mechanical areas HVAC, janitorial spaces, staff offices and meeting rooms, security, exhibition fabrication area......etc., etc.). Please note that most folks usually end up robbing #2 and #3 to get more of #1 and after a couple of years start kicking themselves.....and unfortunately, never stop kicking themselves.......I am speaking from experience. I hope this helps, Wesley S. Creel Administrator of Programs Pink Palace Family of Museums Memphis, Tennessee U.S.A. Telephone 901.624.6370 [log in to unmask] www.memphismuseums.org ========================================================= Important Subscriber Information: The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes). If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes).