I keep getting different answers and was hoping a consensus could be found here. Hopefully this meets the post requirement. This isn't my first stop for this question, dozens of hours of reading and watching videos on youtube have occurred. PS: My first attempt at posting the question didn't describe my search enough. So now we have a totally different answer that varies wildly. “A 2×6 spaced 16 inches apart can span a maximum distance of 13 feet 5 inches when used as a rafter, 10 feet 9 inches when used as a joist, and 6 feet 11 inches when used as a deck beam to support joists with a 6-foot span.” If the span is 1.5 times 6 in feet, how did they get to 20’ and not 9’?Īnother top result in google shows a different answer Ceiling joists don’t normally have the same load restrictions, and so can span greater distances.” Based on building codes, a 2×6 can span anywhere from 2’-1” to 20’-8” depending on the affecting factors. The distance a 2×6 can span is determined by the species, grade, location, use, load, and spacing. “A general rule of thumb for joist span is 1-1/2 times a board’s depth in feet, however, it’s not that simple. Searching online provides a large variance as well. I keep getting different answers which worries me. I’ve done several hours of research and have talked to several lumber yards. What do y'all think? I dont want to just take the word of the guy selling me lumber because they are all telling me different answers. I want to make a 20ft span for a front porch and 8ft spans on the side. ![]() I would like to do something similar but I am worried that the span may be to long to do with normal 2圆's I'm building a barndominum (east Texas) similar in style to the one linked below from RR Buildings, and he installed (non gabled) porches on the side that are wonderful. (updated with more information for rule 4)Įdit: Just want to say a thank you to everyone, I will need some time to read all the answers. r/DIY now has a Discord channel! Come chat with us!ĭid you miss the AMA with Patrick DiJusto? Click here to read it!Īll content must be DIY - if you paid for the work or found it posted online it is not DIY. AMA with Travis Larson is over Check it out!.COVID-19 DIY PPE Post is live, connecting medical professionals with DIYers!.(2) Spans for floor joists that are not selected from Tables A-1 and A-2 and that are required. Quinn Dunki of Blondihacks answers your questions! Read her insights into machining and cat dentistry here. (1) Except as required in Sentence (2) and Article 9.23.13.10., the spans for wood joists and rafters shall conform to the spans shown in Tables A-1 to A-7 for the uniform live loads shown in the Tables.
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