Here's a link to an Excel file I've done to calculate requirements and options for producing strips for my next projects. This is based on on-line calculations from Vaclav's OneOceanKayak site, and some other sites for additional data and calculations. Links back to the source pages are embedded.

Feel free to use and edit it if it's helpful.

http://farback.ca/index.php?option=com_content&view=article&id=16&Itemid=19