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I am trying to span a 26 ft wide by 30 ft garage to add a
I am trying to span a 26 ft wide by 30 ft long garage to add a room above the garage. I installed a double 11 7/8" LVL beam and it has a major sag in it. The beam will run the short way across the gar… read more
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I have an attached garage with demensions of 24 ft wide by
I have an attached garage with demensions of 24 ft wide by 30 ft long. ceiling joists are 2x10's 16 in on center. I cut a stair well into the side of the garage and built living space above. I have st… read more
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Answers always turn into more questions, right? I'm leaning
Answers always turn into more questions, right? I'm leaning toward the 18' opening. These questions are based on that:1)The local stores only have 18" LVL (not 20") what are my options here? One store… read more
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I have to my original question. We removed the drywall and
Hi, I have a follow up to my original question. We removed the drywall and discovered different dimensions than in my original question. Hoping to get an updated size of LVL ridge beam that I should g… read more
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Shannon Galway
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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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Here is a little more detailed drawing of the structure.
Here is a little more detailed drawing of the structure. Number between beams are the distance between each beam, I didn't measure O.C. Most beams measure 2.25" wide, 11.25" tall, and most are 24' exc… read more
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I need to span 20 feet on a garage door on the eve side(load
I need to span 20 feet on a garage door on the eve side(load bearing) with a storage area above garage trussed(attic trusses) 24 O.C. snow loading 01876 … read more
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The I-joists between the first and second story of my two
The wood I-joists between the first and second story of my two story garage are sagging about 1 inch in the center of the larger garage. The span is 26.5 feet. One garage is 23.5feet wide and the othe… read more
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I am building a 24x24 shop with a second floor to be used
I am building a 24x24 shop with a second floor to be used for storage. I am located in central MS and will have a 6/12 roof. I want to be able to store most anything upstairs without an issue. Would l… read more
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Looking at doing a 2x8 beam on south wall of house for
Looking at doing a 2x8 beam on south wall of house for garage door opening. Planning on using flitch plate with triple 2x8's and steel sitting on top of the sill plate if I use 1/2" steel, what hole s… read more
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StructuralEng
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What size microlam is needed for a 22' wide opening? I'm
what size microlam is needed for a 22' wide opening? I'm taking the center support out (3 ft wall between 2 garage door openings ) to create a 22 ft wide continuous span. My intent/plan is to use (2) … read more
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StructuralEng
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Former owner added a 9' x 7' garage door to eave side of
Former owner added a 9' x 7' garage door to eave side of detached 20' x 20' garage without proper header framing. The garage walls are only 8' high, so I don't have room for 10" or 12" LVL beam. I wil… read more
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What size beam do I need to create an opening of 21' 4" in a
What size beam do I need to create an opening of 21' 4" in a single story home on a crawl space with a roof pitch of 4/12. Rafters span 11' either side onto the exterior walls plus 18" past the exteri… read more
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Part one- need to know size of LVL ridge beam . Span is 20'-2",
Part one- need to know size of LVL ridge beam . Span is 20'-2", 2x8 rafters at 24" on centres, 4in 12 pitch. Part two- one end will bear on a column sitting on a 14' -2" LVL beam below.What is the siz… read more
walkereng
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i want to put 24 foot dormer across rear of garage. existing
i want to put 24 foot dormer across rear of garage. existing slope is 6/12. garage depth is 26'. new roof (shed type) slope would be 3/12. what size lvl beam for ridge?… read more
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StructuralEng
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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
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StructuralEng
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I am building a 24 x26 garage with attic room above, in heavy
I am building a 24' x26' garage with attic room above, in heavy snow load country (11:12 pitch roof). I intend to have an 8'h x 16'w garage door. What size header over the door is required if I wish t… read more
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I have a bonus room that was built above a garage, if people
I have a bonus room that was built above a garage, if people are jumping around in the room, you can see up to 1" of movement in the the ceiling of the garage. I was hoping to put a beam down the midd… read more
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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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