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Dan,
I am building a garden pergola. The cross pieces will span 14 feet between
end beams (I'm trying to avoid having to put another beam in the center of
that span. I am looking at 14 foot redwood 2x6s or 2x8s to span that 14 feet
. There will be no other lattice work on top of that, Just the 2x6s or 2x8s
about 12" apart. i live in Colorado, but snow loads sholdn't be a factor since
each beam is only supporting its own weight.
WIll 2x6s bear that span, or maybe 2x8s? Or what would you suggest?
WHere can I look that information up?
Thanks,
Paul
Paul, it sounds like you are just setting up joists with no decking. My dad did a similar thing in Boulder when I was a kid. YOu are looking for material to span the distance without sagging from its own weight.
I like this span table as it gives you many choices:
http://www.awc.org/calculators/span/reversecalc/reversecalc.asp
I plugged in 14'/Redwood/Ceiling Joist/10# live/ 10# dead/Exterior/ and I increased the stiffness to L/480. It returned 2x8. You might play around with species and a few other variables.
Hope this gives you what you want.
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| Rating(1-10) | Knowledgeability = 10 | Clarity of Response = 10 | Politeness = 10 |
| Comment | Thanks Dan. That's exactly what I am trying to accomplish. Your resource was very helpful. Blessings, Paul | ||
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Answers by Expert:
Dan Griffin
Expertise
I can answer almost all questions related to the total construction process. My expertise is in commercial construction, though I can field most any residential question. I have hands on experience in concrete, heavy equipment, masonry, all phases of carpentry, interior finishes, and I am fairly strong in mechanical and electrical.
Experience
I have over 20 years experience as a commercial carpenter and commercial construction superintendent. I have another 20 years experience in facility management for a major school district.
Organizations
My favorite hobby for he past 12 years has been singing bass in a The OkChorale men's barbershop chorus and the Mature Moments quartet.
Education/Credentials
I hold a Bachelor's degree in English and Math. I have completed many continuing education hours in the building trades. I hold a Master Carpenter card from the AGC, Associated General Contractors.
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