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Related Structural Engineering Questions
What size fir or glue lam can span 20 ft from post to post
What size Doug fir or glue lam can span 20 ft from post to post with yeaha two ft overhang on a thre and 12 roof of comp shingle and 2x10 rafters 16 inches on center? … read more
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We need a beam (girder) sized to support a floor. This is
We need a beam (girder) sized to support a floor. This is for a single family stick frame home. The Girder needs to span 12 ft between the jack studs. It will support a typical residential floor with … read more
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I am building a vaulted roof cover of a terrace. It will be
I am building a vaulted roof cover of a terrace. It will be attached to the house with the cross beams in heavy duty brackets. There will be two upright posts on the outer edge (6" x 6"). The area of … read more
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Are there Structural Engineers who deal with the problems of
Are there Structural Engineers who deal with the problems of old balloon frame houses built before any building codes?… read more
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I have recently purchased a house. It is 1947 pier and beam
I have recently purchased a house. It is 1947 pier and beam wood structure with a rather complex (at least for me) hip roof. The foundation was failing. 29 new 10 in concrete piers and 140 ft of new 4… read more
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I plan to create a beam of 3 2x12 with 2 layers of 1/2" ply
I plan to create a beam of 3 2x12 with 2 layers of 1/2" ply sandwiched between. The beam will span a 22 ft room with 2x6 construction and jacks supporting the beam. The beam will carry 16 oc 10 ft raf… read more
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walkereng
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I have a question for a structural engineer. I am seeking to
I am seeking to add a supplemental structural ridge beam under a ridge board in an old garage, which has some roof sagging (3-4"). It's got 2x8 rafters, 4/12 pitch, and just a 2x8 ridge board with no rafter ties and just a few collar ties. Span is 24'. We would like to drywall the underside of the "cathedral" type ceiling. The walls are concrete block except for the triangular gable ends which are framed. We are not looking to remove anything existing, just slide in a supplemental beam as described here: https://www.youtube.com/watch?v=BMSo-avByjY&list=WL&index=6&t=0s The video shows roof trusses being cut, but we have no trusses - it just describes the method of lifting we'd like to use. My question is, what size LVL beam do we need? The supplier near me offers microlam LVL 1 3/4" thick beams in 14", 18" tall, and other heights, in any length, that are supposed to be sandwiched to make any width like 3.5" or 5.25". We do not want to add rafter ties because the vertical walls are only 7' tall and we need the headroom. … read more
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We are about to install an8ft wide window in our front wall.
We are about to install an8ft wide window in our front wall. I want to know the dimensions of the header we need to put in. The window installer says 1" per foot. So it would be a 4' x 8 ft header. Ca… read more
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I want to build a loft inside of a metal building. The width
I want to build a loft inside of a metal building. The width of the loft is 32' and the length is 26' . I want to use timbers. The header will span the 32' and the floor joists will run the 26' length… read more
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I have a 10' X 16' structure using fir. I would like to use
I have a 10' X 16 ' structure using Doug fir. I would like to use 4 x 6 rafters for an open ceiling (#2 doug fir)that would be pitched at 6/12. What would rafter spacing is possible and what sheathing… read more
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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
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StructuralEng
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I have a Cape home built in 1951 that has a support beam in
I have a Cape Cod home built in 1951 that has a support beam in the middle of the basement, constructed of 3 - 2 x 8 wooden boards for a length of 36 feet. I would like to replace it with a steel beam… read more
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What size steel I or W beams do i need 40ft. span to hold up
what size steel I or W beams do i need for a 40ft. span to hold up the entire second floor? I can't support it anywhere other than the outside walls. The building is 39x44 and I am also trying to figu… read more
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StructuralEng
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I have a rough opening of 8' 4" and I want a header size of
I have a rough opening of 8' 4" and I want a header size of 2x8s. Can I use 2 or 3 2x8 laminated (using structural screws ) Fir timbers? The load is one story with no roof load. The span of the floor … read more
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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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StructuralEng
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I have an existing garage that I want to build a mezzanine
I have an existing garage that I want to build a mezzanine for storage. I want to span the width of the garage, 19'6" with no middle support posts. I still have access to the framing, so that the ends… read more
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StructuralEng
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what dimension steel I beam is required to clear span 22,
what dimension steel I beam is required to clear span 22', with a 10 psf dead load and 40 psf live load (floor load only, roof already exists) ? what dimension required if same span were to be split i… read more
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walkereng
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I have a load bearing wall on my first floor between my family
I have a load bearing wall on my first floor between my family room and my living room which is 17 ft. lg. I would like to have two openings of 55" ea openings with two supporting columns between the … read more
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