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Need max. rafter spacing for cathedral ceiling, exposed
need max. rafter spacing for cathedral ceiling, exposed rafters on ridge beam w/2x6 fir decking over top; not sure whether to use 4x6 or 4x8 rafters, both Douglas fir #2 or better; the span is 12 ft. … read more
StructuralEng
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How far will 4 2x12s nailed together span select fir. It is
how far will 4 2x12s nailed together span select fir … read more
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How far can a 4X8 with !.5 inch tonge and groov decking span
How far can a 4X8 with !.5 inch tonge and groov decking span in a residential second floor situation … read more
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Trying to determine if 4x6 rafters on 24" oc with 2x6 t&g
trying to determine if 4x6 rafters on 24" oc with 2x6 t&g deck is viable if span is 190" … read more
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Does this cost money to get an answer? Trying to size a
Trying to size a steel beam for 23 foot span. Residential live load and some snow load. … read more
StructuralEng
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I going to build an attached carport roof. I need to know
I going to build an attached carport roof. I need to know how far apart I can place the 6x6 post supports with a 6x6 header beam running across. The roof will be covered with 29 gauge steel only. Roof… read more
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I am building a flat roof carport 12 feet wide by 24 feet. I
I am building a flat roof carport 12 feet wide by 24 feet long. I don't want a Center Post which will interfere with my opening doors. I plan on using 6x6 post x 4 and 2 by 12 rafters what size glulam… read more
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I'm replacing a 16.5' span that held up a enclosed porch
I'm replacing a 16.5' span that held up a enclosed porch extension 4x6. it is currently braced at 8 feet with a 4x4 post. I want to eliminate the middle post and have an open span of 16'. I need this … read more
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Hip roof shade structure 12 x 16. is a 4 x12 beam able to
hip roof shade structure 12 x 16. is a 4 x12 beam able to span 16 feet? do I need a bigger timber beam? what size? can I use a 3.5 x 12 glue lam instead? I would like to keep the wood look if possible… read more
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I am building a gable roof over a patio The patio measure
Hi I am building a gable roof over a patio The patio measure 12deep 22wide,i am using 2by8 rafters loaded on to 2 2by10 supported by a 6by6 post on a cement footer.the roof pitch is 4/12. What size ri… read more
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Im building a carport with a cantilevered flat roof with
im building a carport with a cantilevered flat roof with minimum slope rafters 16 on center. carport will be attached to house.carports roof is 36'x16'-5" witch would double as deck. I need to know th… read more
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I recently purchased a cottage that has 1 beam running the
I recently purchased a cottage that has 1 beam running the width of the cottage and it has carpenter ant damage. It spans 21'6" and sits on top of the largest support wall in the place. It is just 2x4… read more
StructuralEng
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I want o have patio cover built, attached to house and would
i want o have patio cover built, attached to house and would like to confirm beam and header sizes before beginning. I am in san diego, no possibility of snow. I'd like a full design if possible… read more
StructuralEng
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i need to span 20' and i have 3 4x12s, doug fir, beams, will
i need to span 20' and i have 3 4x12s, doug fir, beams, will they need to be supported in the middle or can they carry a metal roof on top of them, for my carport without support posts in their center… read more
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I am building a shed extension on the side of my cottage, to
I am building a shed extension on the side of my cottage, to use for equipment storage. It will have frame walls on 3 sides, front open. I need to span 30 feet, and plan to use glulam beams at six foo… read more
StructuralEng
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I built a addition for a hot tub on a deck. I used 2x12 joist
I built a addition for a hot tub on a deck. I used 2x12 joist doubled every 14" apart the beam on the outside is a 6x12 sitting 6x6 posts with a footing 25x25 by 3 feet deep with simpson post base. "O… read more
StructuralEng
StructuralEng
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I need a beam to span 22 feet to carry a roof load of 308sf
I need a beam to span 22 feet to carry a roof load of 308sf of 2x6 cardecking supported by two 2x8's at 42 inch centers onto the beam. The roof live and dead loads are unknown to me. I need to have th… read more
walkereng
walkereng
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what height does a 11 and 1/2" laminated beam need to be to
what height does a 11 and 1/2" laminated beam need to be to span 36 feet clear carrying a live load ?… read more
walkereng
walkereng
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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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