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I have a concrete slab with cinder block walls on all four
I have a concrete slab with cinder block walls on all four sides. The walls are 11' tall and the room measures 33' x 27'. I'm trying to determine what size and type of beam I can use to span the 27' a… read more
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walkereng
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I have a main house beam that is a single 2x12 that spans
Hi.. I have a main house beam that is a single 2x12 that spans roughly 6 feet between piers. The floor joists span 13 feet and are supported by rim joist beams that are also 2x12's on the house exteri… read more
walkereng
walkereng
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What is the maximum a double 2x10 girder beam can span
What is the maximum a double 2x10 girder beam can span between piers under a 2 story residential house? The girder beam supports the floor joists for the first floor that are 2x8's at 16 inches c-c. T… read more
walkereng
walkereng
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I need to find out the Post, Beam and Truss sizes for a
I need to find out the Post, Beam and Truss sizes for a patio roof that will be lean-to style. Attached on 2 sides (First is ledger, second is the side of the house along siding). 2 posts that will su… read more
walkereng
walkereng
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Trying to reuse old deck framing for new composite deck
Trying to reuse old deck framing for new composite deck which is 20 x 10 with 2-2 x10 edges and a 2-2 x10 center span on concrete pilers on 6' centers. I am replacing all 5' 2 x10 joists on 24" center… read more
walkereng
walkereng
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Remodeling a 1930's year round cottage with 2 x 6 full
remodeling a 1930's year round cottage with 2 x 6 full dimensional construction. … read more
walkereng
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Using a 9 1/2 inch lam beam spanning 20 feet. What size
Using a 9 1/2 inch lam beam spanning 20 feet. What size support post is needed. no snow, load 30# … read more
walkereng
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I am building a deck off the back of my house. It will be 10
I am building a deck off the back of my house. It will be 10 feet out from the house and about 45 feet long. I am planning on four concrete piers 14" x 36" inches deep spaced 15 feet apart. I am plann… read more
walkereng
walkereng
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I'm replacing wooden header on flat roof porch. Header is 2
I'm replacing wooden header on flat roof porch. Header is 2 x 8 x 16 1/2, with 2 x 4 joist 24” on center. Can I use (2) 2 x 6 x 16 1/2” lvl instead? I am concerned about strength. Thanks. … read more
walkereng
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Remodeling older house. Rafter roof over bedroom has ceiling
Is there anything else the Structural Engineer should be aware of?Customer: adding a beam under joists 16' long that will support 16' of joists. Built beam out of 2x8 x 16 with 6 layers of 3/4" ply glued in between 2x's. then will add sister joist to existing 2x6's over the beam using 2x8s… read more
walkereng
walkereng
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Need to know what size LVL to span 14 feet. removing
Need to know what size LVL to span 14 feet. removing interior wall with pony wall above. Flat roof 2x8 @ 24 oc Pony wall is carrying 5 each roof joists (10' ceiling) LVL would be place under existing … read more
StructuralEng
StructuralEng
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Really? Sure, though I'm an electrical engineer - statics
Really? Sure, though I'm an electrical engineer - statics and dynamics weren't my forte. I am looking to build a Half porch (not gable but 1 side fixed to the house with 12 foot width, 25 foot length … read more
walkereng
walkereng
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What is the maximum span for a beam made of two southern
what is the maximum span for a beam made of two southern pine #2 2x8's under a two story camp ?… read more
walkereng
walkereng
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I am working on a deck plan, I want to span 16' from the house
I am working on a deck plan, I want to span 16' from the house to outer perimeter, (actual span15' 4" using pressure treated lumber. Is 2x12x16 sufficient or would I be safer to use 2x14x16 -- also, t… read more
StructuralEng
StructuralEng
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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
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I am building a treehouse. the trees are 18' diameter and are
I am building a treehouse. the trees are 18' diameter and are 16'apart. what size beam do I need to span the 16' with 2" x 6" 16"oc joists spanning 10'?… read more
StructuralEng
StructuralEng
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If i have a deck with 2x10" southern pine joists at 18" spacing,
If i have a deck with 2x10" southern pine joists at 18" spacing, what's the maximum span if i use a 6x8" red cedar beam? and if using 6x6" red cedar posts to support that beam, what's the maximum spac… read more
walkereng
walkereng
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We want to span a 22 ft opening using a pine timber. The beam
We want to span a 22 ft opening using a pine timber. The beam will support a shed style roof with 2x8 rafters, 2x4 strapping and metal roofing. What size beam should we need?… 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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