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I am building a 20x30 cabin with a 5/12 pitch I have an
I am building a 20x30 cabin with a 5/12 pitch I have an 8x18" doug fir ridge beam that will span 20' to an interior wall and am using 4x6 doug fir rafters on 24" centers. I am trying to achieve a 60# … read more
walkereng
walkereng
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I'm in the process of finishing a single story, detached
Hi all,I'm in the process of finishing a single story, detached garage with a gable roof that I've spent the summer building. The garage is 16' wide, 24' long garage with 9' walls. The walls are frame… read more
walkereng
walkereng
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I need to replace some rafter ties in my garage but I don't
Hi,I need to replace some rafter ties in my garage but I don't think the rafter ties that are currently installed are the correct size. The span is 17.5' and the rafter ties are spaced 24"oc. I'm not … read more
PaulP324
PaulP324
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I want to build rafters using red cedar 4 x 4 x12'.over a
i want to build rafters using red cedar 4 x 4 x12'.over a patio with of building is 17Ft any suggestions wanting to use cedar for the look … read more
PaulH471
PaulH471
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I am building a double outhouse and storage closet,
Hi! I am building a double outhouse and storage closet, basically 3 4'x4' rooms, on a 16'x8' deck. I am planning on using PT 4x6's on pre-cast pier blocks for the foundation. My question is: how far c… read more
walkereng
walkereng
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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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My house was built in 2004 in California. The plans were
My house was built in 2004 in California. The plans were made using the Uniform Building code 1997 and the California Building code 2001. They were engineered by a local engineering company. … read more
StructuralEng
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1 1/2 story house. Wanting to remove knee wall to increase
1 1/2 story house. Wanting to remove knee wall to increase size of bedroom. The knee wall studs (2x4) are sitting (attached) to the floor joist (2x6) and the roof rafters (2x6) They (joist and rafters… read more
StructuralEng
StructuralEng
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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
StructuralEng
StructuralEng
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I want to open up the wall between my kitchen and living room.
I want to open up the wall between my kitchen and living room. The wall is load bearing. The joists are 2x4 16 inch oc and the attic is non storage non occupied. The attic does hold the HVAC ducts, el… read more
StructuralEng
StructuralEng
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Bachelor's Degree
9,772 satisfied customers
I'm looking rafters in #2 fir 4x8 in California (no snow)
Hi, I'm looking for spans for roof rafters in #2 Doug fir 4x8 in California (no snow) the slope is 2in12… read more
StructuralEng
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I wish to use 2x6 T&G Decking over 4x10s (spanning 12 ft) on
I wish to use 2x6 T&G Decking over 4x10s (spanning 12 ft) on a 3/12 pitched roof (deck) overhang in the Pacific Northwest west of the Cascade Mtn. range. Question: Spacing of 4x10s...How close do the … read more
StructuralEng
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Good Morning: I'm designing a 16' x 20' outbuilding and I
Good Morning: I'm designing a 16' x 20' outbuilding and I have 3 questions so far. In Redding, CA. My floor will be ¾” OSB on 2x6 joists (16” oc). The joists will run the 20 foot length and the beams … read more
StructuralEng
StructuralEng
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hey, i have a window that was put in... it is 84inches wide,
hey, i have a window that was put in... it is 84inches wide, 60inches tall with a roof over this room, the roof at this point is the load side, or the peak side, the guy put 2 2x6 in place. it was a w… read more
StructuralEng
StructuralEng
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I just finished building a low level deck and now want to build
I just finished building a low level deck and now want to build a gabled roof over the left half of it (17X16). The roof will extend out 90 degrees to the house as in the attached pic. The small shed … read more
walkereng
walkereng
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I have a equilateral trianangular roof truss made of a 4x6x16
I have a equilateral trianangular roof truss made of a 4x6x16 foot continuous Doug Fir base and 2-4x6 rafters rising to a height of 4 ft. at center. The truss forms a gable window and is infilled with… read more
walkereng
walkereng
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Hi--I want to try a different approach. Would you analyze my
Hi--I want to try a different approach. Would you analyze my drawing and tell me if it will work? How can I send it to you? XXXX [email protected]… read more
walkereng
walkereng
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I am replacing my asphalt shingle roof and modifying it at
I am replacing my asphalt shingle roof and modifying it at the same time. In the future I will remove the existing ceiling to create a cathedral ceiling. I am removing the existing 3/4" plywood deck a… 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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