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I'm building a 14x14 hip roof pavilion. I'm using 6x6 posts,
Hello - I'm building a 14x14 hip roof pavilion. I'm using 6x6 posts, 4x10 beams, and 4x8 rafters (all doug fir grade 1). Decking is 2x4 Doug Fir #1 T&G with tar paper and arch shingles. My question is… read more
PaulP324
PaulP324
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MS
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Im trying to design the rafters for an addition im building,
Im trying to design the rafters for an addition im building, the building is 27 feet wide, so we figure the rafters need to span 18 feet each. Id like to have a 6 foot rise i,e. about 6 feet in the at… read more
PaulP324
PaulP324
consulting engineer
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1,276 satisfied customers
Can I span 24 ft with W10 - 22 I beam, supporting only a
Can I span 24 ft with W10 - 22 I beam, supporting only a sheet metal roof, Vulcan 3N 20 decking used as roof, beam welded to column at both ends, even load steel roof screwed to "nailer" on top of bea… read more
PaulP324
PaulP324
consulting engineer
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What size lvl do I need for a ridge beam to vault a ceiling.
What size lvl do I need for a ridge beam to vault a ceiling. I'd just install it under the existing ridge board that spans 20 ft. The roof rafters are 2x6's 16 on center and span 14 ft. The roofs pitc… read more
StructuralEng
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New deck roof, I need post, beam, and rafter for a new deck
New deck roof, I need post, beam, and rafter for a new deck roof. … read more
StructuralEng
StructuralEng
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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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I'm putting a roof over my deck. I have a 13' 6" span from
I'm putting a roof over my deck. I have a 13' 6" span from ledger to beam. Pitch is 3.2. Snow load is 35. I will be putting a 1x6 [email protected] ceiling on the underside of the rafters. No additional ceiling joi… read more
StructuralEng
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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
StructuralEng
StructuralEng
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I'm looking to support a 24 by 24 ft roof with three glulam
I'm looking to support a 24 by 24 ft roof with three glulam beams. How big of glulams do I need? … read more
StructuralEng
StructuralEng
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Can I use a 6x6 fur beam rafter that spans 14' with a 2'
Can I use a 6x6 Douglas fur beam for a rafter that spans 14' with a 2' over hang? Snow load of 30 lbs and using T&G 2x6 for the roof, it's for an outdoor patio cover.… read more
StructuralEng
StructuralEng
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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 want to cantilever a 1:12 roof 6'. The structure would be on an exi
Hi, I want to cantilever a 1:12 roof for about 6'. The structure would be on an existing light concrete deck supported by 4x10 beams. The existing roof has a 26" overhang. I wonder if I can attach a b… read more
StructuralEng
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, I am planning to put a roof over an existing deck. The
Hi, I am planning to put a roof over an existing deck. The deck is 30 feet long. The over all depth of the deck is 8 feet wide. I do not know how to size the beam or what size columns to use. I will n… read more
StructuralEng
StructuralEng
Consultant
Bachelor's Degree
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I have 14 x14 awning with 2x6 t&g with flintlastic roll roof
I have 14' x14' awning with 2x6 t&g with flintlastic roll roof Will 3 - 4x8 beams be adequate?… read more
StructuralEng
StructuralEng
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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
StructuralEng
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Bachelor's Degree
9,772 satisfied customers
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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I am building a roof over a deck using 6 x 6s as posts spaced
I am building a roof over a deck using 6 x 6's as posts spaced 12' apart (12' x 12'). The roof will have 4 x 6's for rafters on a 9/12 pitch spaced 3' apart (0, 3, 6, 9, 12') with 1 x 8" t/g on top of… read more
StructuralEng
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building an exterior deck attached to house. Ceramic tile
building an exterior deck attached to house. Ceramic tile over 1.25" mortar over waterproof membrane over 2x6 t&g fir over df wood joists at 36" o.c.. Max joist span is 9'. I have W6X9 steel I beams (… 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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