We use several types of deep screened bottom boards. See pictures at http://www.n-vcelari.cz/index.php?option=com_content&view=article&id=84&Itemid=84 Clicking "Vykres" below pictures construction plans are available. Best regards, Ivan Cerny Czech Republic *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html Guidelines for posting to BEE-L can be found at: http://honeybeeworld.com/bee-l/guidelines.htm