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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
MS
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I want to build a 18 deep by 30 wide porch free standing in
I want to build a 18 deep by 30 wide porch free standing in front of house was told that I would have to put post 5'9" apart to bolt my 2x8 frame to if I use a 30ft LVL what is my span between post an… read more
PaulP324
PaulP324
consulting engineer
MS
1,276 satisfied customers
I am adding a self supporting wrap around porch roof on a
i am adding a self supporting wrap around porch roof on a manufactured home. The porch pitch will be 3/12, rafters will be 2x6x10' DF #2, 24" O.C., 2 beam construction, outside beam will be 3 1/2 x 7 … read more
walkereng
walkereng
Consultant
Bachelor's Degree
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A proposed a shed roof with metal roof 6'-3. Sorry shed roof
sorry shed roof metal roof dimension out 6 foot 3 inches and total span 25 feet. I had planned on 3 ply 16 inch lvl can i use a smaller lvl 14 inch or 12 inch either 3 ply? … read more
walkereng
walkereng
Consultant
Bachelor's Degree
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I'm remodeling a room in my house and saw that it used to be
I'm remodeling a room in my house and saw that it used to be a porch at one time. While removing the drop ceiling, I noticed the previous owner removed 2 large chunks in the LVL to put heating duct th… read more
StructuralEng
StructuralEng
Consultant
Bachelor's Degree
9,772 satisfied customers
I have a home renovation project. I am removing a load
I am removing a load bearing wall. It spans 225 inches and supports 5 feet of simple joist (16 inch on center) and OSB sheathing, asphalt shingles on one side and 7 feet of hip roof simple truss 5/12 slope roof on the other side.… read more
StructuralEng
StructuralEng
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I am adding a roofed porch to my house. I will be attaching
I am adding a roofed porch to my house. I will be attaching a slanted roof to the existing high pitched roof actually sitting on it. The span then of the roof rafters I will be installing will be abou… read more
StructuralEng
StructuralEng
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Bachelor's Degree
9,772 satisfied customers
Designing a covered porch. 5' x 17'. Framework is supporting
Ok.. Designing a covered porch. 5' x 17'. Framework is supporting gable roof only, with engineered roof truss, 5:12 pitch, 16" overhang. Flat ceiling. Trusses to be supported on the 5' span extending … read more
StructuralEng
StructuralEng
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Bachelor's Degree
9,772 satisfied customers
I'm looking to build a screened porch in Iowa that measures
I'm looking to build a screened porch in Iowa that measures 16' wide by 20' long with a vaulted ceiling at the same pitch as the roof (6/12). What size LVL beam would be necessary to carry the load on… read more
StructuralEng
StructuralEng
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Bachelor's Degree
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I want to span 18' with a beam to support 2' oc 2x10 rafters
I want to span 18' with a beam to support 2' oc 2x10 rafters which are 16' long and will rest on the birds mouth @ 14' (2' over hang). 6" pitch, Maine snow load, metal roof. What size should the 18' s… read more
StructuralEng
StructuralEng
Consultant
Bachelor's Degree
9,772 satisfied customers
I have a porch roof that was recently constructed by local
I have a porch roof that was recently constructed by local contractor that failed inspection. The roof is 6'6" deep and spans the width of the house and the main girder consists of 2 2"x8"s and a 1/2"… read more
StructuralEng
StructuralEng
Consultant
Bachelor's Degree
9,772 satisfied customers
The lower floor back, exterior wall of the 2 story house buts
The lower floor back, exterior wall of the 2 story house buts an 8 ft porch which has a covered roof. The shed roof is attached to the house with a 6 and 12 pitch which is attached just below the upst… read more
StructuralEng
StructuralEng
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Bachelor's Degree
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I have to span 20 feet to support the roof and ceiling. The
I have to span 20 feet to support the roof and ceiling. The open area is 20' x 17'. I have calculated the dead load weight of all the roof and ceiling materials at 3,350 lbs or 10.5 lbs/sq ft. What si… read more
walkereng
walkereng
Consultant
Bachelor's Degree
4,728 satisfied customers
How big a LVL beam do I need to span 20 feet on a porch that
How big a LVL beam do I need to span 20 feet on a porch that is 16 feet wide. The beam will support 2x8 rafters.… read more
walkereng
walkereng
Consultant
Bachelor's Degree
4,728 satisfied customers
, I have home that is 28' x 40' with a 8 foot covered
Hello, I have home that is 28' x 40' with a 8 foot covered porch across the front of the front of the house. The trusses are a 6/12 pitch on the back of the house with the front pitch on a 6/12 about … read more
StructuralEng
StructuralEng
Consultant
Bachelor's Degree
9,772 satisfied customers
I am building a porch and the distance from the posts to the
I am building a porch and the distance from the posts to the house is 6'. I will be using 2x6 rafters 12" o.c. The roof pitch will be 3/12. what is the shallowest LVL I can use in a 2ply 1 3/4" LVL? C… read more
StructuralEng
StructuralEng
Consultant
Bachelor's Degree
9,772 satisfied customers
I need to know what size steel beam and posts are needed to
I need to know what size steel beam and posts are needed to span 14 1/2 feet. This will be in the basement of a 2 story house roughly 40 x 42 in dimension with a center bearing wall, attic joist resti… read more
StructuralEng
StructuralEng
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Bachelor's Degree
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I have a 8 X 46" porch on the front of my house with roof
I have a 8' X 46" porch on the front of my house with roof with 1" overhang. The roof is supported by two 2X10s sitting on 6 posts. After 17 years my wife wants to eliminate 2 of the posts and replace… read more
StructuralEng
StructuralEng
Consultant
Bachelor's Degree
9,772 satisfied customers
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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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