Greetings all, I have a project where I am building a raised floor over a concrete slab. The raised floor joists will not sit directly on the concrete thus I need to find out span lenghts for various size boards.
Anyone know where I might find this info on the Internet?
Judging from the date on this post, you've probably already found your answer, but here's a pretty good span calculator from the Canadian Wood Council website: http://www.cwc.ca/design/design_tools/calcs/SpanCalc2002/index.php
You can calculate for either Canadian or U. S. lumber.
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