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Building a pergola with western red cedar, will support
building a pergola with western red cedar, will support vines. want to use 8x8 posts with 8x10" beam (flat) @ single span of 13.5' W 18" +/- overhang @ both ends, 16.5' wide overall. Two sets @ 10' ap… read more
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walkereng
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I am having a great room built with open ceiling. the
I am having a great room built with open ceiling. the overall dimensions are 22 ft wide by 36 feet long; 4 foot overhand on one gable end and standard 1 foot at other gable. the roof rafters will cons… read more
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I have a 16 foot wide span every 8 feet, over all length is
I have a 16 foot wide span every 8 feet, over all length is 24 feet. What size of douglas fir should I use? … read more
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I need help figuring out a beam spam for a swing set. Well,
I need help figuring out a beam spam for a swing set. … read more
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We are adding on to our ranch style house by pushing out our
We are adding on to our ranch style house by pushing out our 26' living room an extra 15 feet. Thus there would be a vaulted ceiling with the peak running perpendicular to the main ranch house. The pi… read more
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What is the minimal size joist to span 12 feet at 16" o.c.
What is the minimal size joist to span 12 feet at 16" o.c. for a roof over a garage that is also a deck.… read more
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For a pergola, how far can a 6x12 fir beam span? it will
for a pergola, how far can a 6x12 Doug fir beam span? it will have 10 (includes 1 over each post) 3x12x13' joists hung 24" oc. … read more
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I'm building a patio cover. I need to know the minimum
I'm building a patio cover. I need to know the minimum dimensions for my beams. I'm using #1 Douglas fir-larch (in southern California). Local code states: • Deflection base on L/360 (LL only) • Load … read more
StructuralEng
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We're opening a wall between our kitchen and dining room. It
We're opening a wall between our kitchen and dining room. It is a load bearing wall. The house is a 1200 sf 1 1/2 story cape. This support wall goes from front to back for a total of 33 feet. The roof… read more
StructuralEng
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I am building an arbor to add interest to the front door. I
I am building an arbor to add interest to the front door. I want to use full dimension 6 by 6 or 6 by 8 beams post to post and full dimension 2 by 4 (12" on center) for the 'joists'. There will be 1/4… read more
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Same project - different materials. Can you tell me how much
Same project - different materials. Can you tell me how much weight beams made of fir (salvaged from a state bridge) measuring 22" x 8" spanning the same creek (20') can carry installed both verticall… read more
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Log post holding roof ridge with 9000 lbs point load resting
Log post holding roof ridge with 9000 lbs point load resting on floor with ijoist spaced 16 in on centers. What size lvl do I need as header on floor below supporting ceiling where log post is located… read more
StructuralEng
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Im building a simple roof over a deck in backyard that will
I'm building a simple roof over a deck in backyard that will span 20 foot from support to support. No load other than 1x lumber and a standing metal seam roof. In Houston so no snow load, only rain. W… read more
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I need to support 5200lbs with a post supported by a beam of
I need to support 5200lbs with a post supported by a beam of x? size with a beam span of 11ft supported at both ends… read more
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Im trying to determine the deflection of an 8x8 timber (assumed
I'm trying to determine the deflection of an 8x8 timber (assumed to be pine) 26 feet long under a uniformly distributed load of 2000 lbs. I'm using the formula 5/384(WL**3)/(EI) with W in lbs, L in in… read more
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I plan to add a 16 x 14 addition to my cottage. What size
I plan to add a 16 x 14 addition to my cottage. What size beam do I use for a ridge beam (dimensional lumber eg fir) that will have a 14 foot clear span, and will have rafters hung on it (2' o/c) span… read more
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How much will a 24 foot long 6 x 8 structural grade fir beam
How much will a 24 foot long 6 x 8 structural grade fir beam sag with two 6 x8 posts at opposite ends under a 500 lb load spread evenly along the length of the beam, and will you be willing to sign th… read more
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I have a deck with cantilevered joists that are deteriorated. I
I have a deck with cantilevered joists that are deteriorated. I am going to cut the joists off at the house. I will install a ledger on the side of the house. I need to install a 28 foot beam 7 feet o… read more
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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