Hi Bill- Our typical board is not so big. We try to use one of two 'Array' sizes here in the US (where an Array contains multiple boards, a manufacturing panel contains multiple arrays). Our sizes are: 284x208 MM - 4 arrays per panel, x pcbs per array 284x138 MM - 6 arrays per panel, x pcbs per array Usually, we can pattern the PCB to get a good yield in one or the other width. In rare cases, we shorten the length and get one more array (rotated 90 deg.) on the panel. Usually, we'll leave dead board in the array to get the standard length, because we save no money by shortening unless we can go down to about 210x138. We got to this by assuming the mfg panel is 18x24 inches. We source very few boards in the US these days, and it may be true that overseas they have the 'super-euro' and other unique sheet sizes available as a starting point, but we still seem to get optimal pricing with these two sizes. Best Wishes, -Chris "Brooks,Bill" <[log in to unmask]> To: [log in to unmask] Sent by: DesignerCouncil cc: <[log in to unmask]> Subject: [DC] Standard panel size?... 07/28/2005 06:47 PM Please respond to "(Designers Council Forum)"; Please respond to "Brooks,Bill" We are re-evaluating our board assembly panel sizes and want to get the best yields from our vendor's manufacturing panels when we select the final size of our 'standard' assembly panel... What is your PCB manufacturing 'standard' panel size for glass/epoxy type materials??? Some PCB vendors tell me they have a working panel size of 18x24 inches... what do you use? And why? Thanks in advance for your help... Bill Brooks - KG6VVP PCB Design Engineer, C.I.D.+, C.I.I. Tel: (760)597-1500 Ext 3772 Fax: (760)597-1510 Datron World Communications, Inc. _______________________________________ San Diego Chapter of the IPC Designers Council Communications Officer, Web Manager http://dcchapters.ipc.org/SanDiego/ http://pcbwizards.com --------------------------------------------------------------------------------- DesignerCouncil Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF DesignerCouncil. To temporarily stop/(restart) delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL/(MAIL) Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 --------------------------------------------------------------------------------- --------------------------------------------------------------------------------- DesignerCouncil Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF DesignerCouncil. To temporarily stop/(restart) delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL/(MAIL) Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ---------------------------------------------------------------------------------