User Panel
Posted: 9/9/2013 10:05:18 AM EDT
Planning a new home with pier and beam construction. Would like some help on site prep., soil loading, and foundation design.
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You're going to have to provide a little more info. Proposed size, is this over water at all, type of soil, etc.
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Step One: Get soil analysis of your home site.
Step Two: Report back here |
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Go hire a real engineer because the advice you get online will be worth what you paid for it.
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Yeah, I agree with the consensus. Hire professionals to survey the property and design a suitable foundation to handle the loads based on the soils. Otherwise you're going to have GD help you piss in the wind.
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Even just a general location would be better than what you've given us so far.
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Step One: Get soil analysis of your home site. Step Two: Report back here this information to your design professional. View Quote Seriously. If what you're building is outside the scope of the prescriptive sections of the International Residential Code, then you need a licensed design professional. |
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Planning a new home with pier and beam construction. Would like some help on site prep., soil loading, and foundation design. View Quote As has been said. Find a local PE to get this done. If the "cry once" approach applies to anything it would be foundation design and construction. |
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Quoted: As has been said. Find a local PE to get this done. If the "cry once" approach applies to anything it would be foundation design and construction. View Quote View All Quotes View All Quotes Quoted: Quoted: Planning a new home with pier and beam construction. Would like some help on site prep., soil loading, and foundation design. As has been said. Find a local PE to get this done. If the "cry once" approach applies to anything it would be foundation design and construction. |
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As has been said. Find a local PE to get this done. If the "cry once" approach applies to anything it would be foundation design and construction. View Quote View All Quotes View All Quotes Quoted:
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Planning a new home with pier and beam construction. Would like some help on site prep., soil loading, and foundation design. As has been said. Find a local PE to get this done. If the "cry once" approach applies to anything it would be foundation design and construction. This. It's a lot cheaper to pay a PE now than to pay a PE later to fix your eff-up. |
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Thanks guys. Soil is black clay (inorganic), which is greasy when wet and cracks open wide when dry. I have dug 3 foot deep holes on the site, and it's clay all the way down. Frost line is not an issue (Texas).
Land is flat with a gentle slope toward a creek about 350 feet away. The site is above all the flood planes. I figure I need to build the site up a foot or two. I could use more black clay from the property (cheapest) or haul in some other material. I'm thinking piers set in a 12' by 12' grid. Also guestimating 3' square footings. My main questions, at this point are: what is a conservative soil loading (thinking 2000 PSF), and how deep do I need to go with the footings to keep the foundations stable over the year? |
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Recently licensed civil engineer, I'm going to agree with the hive that any advice you get here will not be worth hanging your home on. You really do need to spend the money and get it professionally surveyed and designed, ESPECIALLY since from the sound of your 2nd post you are building on highly expansive black clay. This is not something you want to hang on guesstimates or Internet experts, if you do then you will likely be repairing the foundations within 10 years and again every drought / wet cycle after that.
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Pile piers made from rocks from the creek, or if you're lucky, a bluff face.
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Go hire a real engineer because the advice you get online will be worth what you paid for it. View Quote I'm a structural engineer I have designed bridges with 12 foot tall curved steel plate girders. I have run 100 million dollar projects even other engineers say that I'm an annoying prick big brain the last time somebody asked engineering advice on this forum, the advice he got was offered by somebody professing to be a civil engineer and the advice was flat wrong to the point of being potentially deadly don't be a fool, get the design done properly by a local engineer |
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This is not something you'd want someone's free opinion on from an internet message forum. There's way too many variables. You need soil borings and a survey and a bunch of other stuff just to figure out how to do your site prep (compaction, remove, fill, grade etc). That doens't even inlucde how deep you really need piers to go, concrete mixes etc. etc etc.
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i work on very big civil project for a living and built homes for many years
you must get a licensed pe for what you are talking about screwing around with a house is how you get killed or injured when it collapses very bad juju in guessing pay the cost up front is worth thousands in the backend |
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Thanks guys. Soil is black clay (inorganic), which is greasy when wet and cracks open wide when dry. I have dug 3 foot deep holes on the site, and it's clay all the way down. Frost line is not an issue (Texas). Land is flat with a gentle slope toward a creek about 350 feet away. The site is above all the flood planes. I figure I need to build the site up a foot or two. I could use more black clay from the property (cheapest) or haul in some other material. I'm thinking piers set in a 12' by 12' grid. Also guestimating 3' square footings. My main questions, at this point are: what is a conservative soil loading (thinking 2000 PSF), and how deep do I need to go with the footings to keep the foundations stable over the year? View Quote No architect or engineer worth his salt is going to tell you over the Internet how to do this. If one does, run, don't walk away. There is way too much liability in this to offer advice unseen and over a public forum to do this. You have to go hire someone and pay them to do it, period! Find someone local that is not only familiar with your area but also the building and local codes,that will govern the construction of,your home. Would you want someone over this, or any other forum for that matter, to tell you how to perform heart surgery over the Internet? I doubt it. Don't be penny wise and dollar foolish........ |
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Lol at people who want professional opinions/advice for free, and on the Internet. Double lol.
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Related question. I want to remove/relocate some support beams in my attic. What sort of professional do I look for to hire to tell me which/where to move them? I am already on board with hiring somebody. I just don't know if I need an architect, a structure engineer, or what. I don't want to go with either total overkill, or someone who is just guessing. Who is the right professional?
Thanks. :) |
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Related question. I want to remove/relocate some support beams in my attic. What sort of professional do I look for to hire to tell me which/where to move them? I am already on board with hiring somebody. I just don't know if I need an architect, a structure engineer, or what. I don't want to go with either total overkill, or someone who is just guessing. Who is the right professional? Thanks. :) View Quote Civil or Structural. |
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Structural engineer to give the assembly requirements and an architect to make it look good.
OP, I am happy to answer any questions offline if you would like. |
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Related question. I want to remove/relocate some support beams in my attic. What sort of professional do I look for to hire to tell me which/where to move them? I am already on board with hiring somebody. I just don't know if I need an architect, a structure engineer, or what. I don't want to go with either total overkill, or someone who is just guessing. Who is the right professional? Thanks. :) View Quote You can hire an architect or an engineer, but the architect will probably hire an engineer. We can do the math easily enough though so you might hire an architect with an engineer on staff who will do the work, but generally architects like to avoid the liability. So, engineer. |
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I'm a structural engineer I have designed bridges with 12 foot tall curved steel plate girders. I have run 100 million dollar projects even other engineers say that I'm an annoying prick big brain the last time somebody asked engineering advice on this forum, the advice he got was offered by somebody professing to be a civil engineer and the advice was flat wrong to the point of being potentially deadly don't be a fool, get the design done properly by a local engineer View Quote View All Quotes View All Quotes Quoted:
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Go hire a real engineer because the advice you get online will be worth what you paid for it. I'm a structural engineer I have designed bridges with 12 foot tall curved steel plate girders. I have run 100 million dollar projects even other engineers say that I'm an annoying prick big brain the last time somebody asked engineering advice on this forum, the advice he got was offered by somebody professing to be a civil engineer and the advice was flat wrong to the point of being potentially deadly don't be a fool, get the design done properly by a local engineer Heh....I remember that thread. Most everyone's answers here are correct. Hire a PE. |
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Heh....I remember that thread. Most everyone's answers here are correct. Hire a PE. View Quote View All Quotes View All Quotes Quoted:
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Go hire a real engineer because the advice you get online will be worth what you paid for it. I'm a structural engineer I have designed bridges with 12 foot tall curved steel plate girders. I have run 100 million dollar projects even other engineers say that I'm an annoying prick big brain the last time somebody asked engineering advice on this forum, the advice he got was offered by somebody professing to be a civil engineer and the advice was flat wrong to the point of being potentially deadly don't be a fool, get the design done properly by a local engineer Heh....I remember that thread. Most everyone's answers here are correct. Hire a PE. Can someone link that thread for me? Thanks in advance. |
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Related question. I want to remove/relocate some support beams in my attic. What sort of professional do I look for to hire to tell me which/where to move them? I am already on board with hiring somebody. I just don't know if I need an architect, a structure engineer, or what. I don't want to go with either total overkill, or someone who is just guessing. Who is the right professional? Thanks. :) View Quote I would hire a reputable general contractor who does that kind of work. Engineer is overkill. They probably wouldn't know what they're doing anyway. |
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I would hire a reputable general contractor who does that kind of work. Engineer is overkill. They probably wouldn't know what they're doing anyway. View Quote View All Quotes View All Quotes Quoted:
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Related question. I want to remove/relocate some support beams in my attic. What sort of professional do I look for to hire to tell me which/where to move them? I am already on board with hiring somebody. I just don't know if I need an architect, a structure engineer, or what. I don't want to go with either total overkill, or someone who is just guessing. Who is the right professional? Thanks. :) I would hire a reputable general contractor who does that kind of work. Engineer is overkill. They probably wouldn't know what they're doing anyway. Or, just ask a carpenter. |
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Thanks, guys. OP, sorry to thread-jack you. All yours again. (I do believe in hiring a guy to do the thinking on stuff like that, even if you are going to be swinging the hammer)
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Can someone link that thread for me? Thanks in advance. View Quote View All Quotes View All Quotes Quoted:
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Go hire a real engineer because the advice you get online will be worth what you paid for it. I'm a structural engineer I have designed bridges with 12 foot tall curved steel plate girders. I have run 100 million dollar projects even other engineers say that I'm an annoying prick big brain the last time somebody asked engineering advice on this forum, the advice he got was offered by somebody professing to be a civil engineer and the advice was flat wrong to the point of being potentially deadly don't be a fool, get the design done properly by a local engineer Heh....I remember that thread. Most everyone's answers here are correct. Hire a PE. Can someone link that thread for me? Thanks in advance. I believe this is the one... http://www.ar15.com/forums/t_1_5/1376658__ARCHIVED_THREAD____Need_load_capacity_of_6x6_steel_I_beam.html&page=1 |
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Related question. I want to remove/relocate some support beams in my attic. What sort of professional do I look for to hire to tell me which/where to move them? I am already on board with hiring somebody. I just don't know if I need an architect, a structure engineer, or what. I don't want to go with either total overkill, or someone who is just guessing. Who is the right professional? Thanks. :) View Quote an architect is required to seal drawings for any plans where they are building something for human habitation a structural engineer knows how buildings work architects generally don't know anything at all about structural engineering except for rules of thumb to the degree that it is hilarious get the phone book, look up professional engineers, or structural engineers there's going to be an assortment of semi-retired old roosters that do engineering for the local remodeling architects or call an architect and ask who he uses for his structural engineer all you'll need is the PE for this kind of work |
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I would hire a reputable general contractor who does that kind of work. Engineer is overkill. They probably wouldn't know what they're doing anyway. View Quote View All Quotes View All Quotes Quoted:
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Related question. I want to remove/relocate some support beams in my attic. What sort of professional do I look for to hire to tell me which/where to move them? I am already on board with hiring somebody. I just don't know if I need an architect, a structure engineer, or what. I don't want to go with either total overkill, or someone who is just guessing. Who is the right professional? Thanks. :) I would hire a reputable general contractor who does that kind of work. Engineer is overkill. They probably wouldn't know what they're doing anyway. LOL the contractor hires a PE durrrr or he aint getting a permit math and science are your friend ETA - HOLY SHIT IT'S YOU AGAIN |
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and the advice was flat wrong to the point of being potentially deadly View Quote Wasn't that the thread where somebody tried to size a beam based on deflection only? Because shear, moment, bending stress, etc was for suckers? Got all pissy when called on it, then admitted they were really wastewater eng? I remember that thread... ETA: asked and answered, doh! |
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an architect is required to seal drawings for any plans where they are building something for human habitation a structural engineer knows how buildings work architects generally don't know anything at all about structural engineering except for rules of thumb to the degree that it is hilarious get the phone book, look up professional engineers, or structural engineers there's going to be an assortment of semi-retired old roosters that do engineering for the local remodeling architects or call an architect and ask who he uses for his structural engineer View Quote View All Quotes View All Quotes Quoted:
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Related question. I want to remove/relocate some support beams in my attic. What sort of professional do I look for to hire to tell me which/where to move them? I am already on board with hiring somebody. I just don't know if I need an architect, a structure engineer, or what. I don't want to go with either total overkill, or someone who is just guessing. Who is the right professional? Thanks. :) an architect is required to seal drawings for any plans where they are building something for human habitation a structural engineer knows how buildings work architects generally don't know anything at all about structural engineering except for rules of thumb to the degree that it is hilarious get the phone book, look up professional engineers, or structural engineers there's going to be an assortment of semi-retired old roosters that do engineering for the local remodeling architects or call an architect and ask who he uses for his structural engineer Great advice. There's a ton of guys (at least in my area) who take on small jobs like this now and then for a very reasonable fee. |
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Wasn't that the thread where somebody tried to size a beam based on deflection only? Because shear, moment, bending stress, etc was for suckers? Got all pissy when called on it, then admitted they were really wastewater eng? I remember that thread... View Quote View All Quotes View All Quotes Quoted:
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and the advice was flat wrong to the point of being potentially deadly Wasn't that the thread where somebody tried to size a beam based on deflection only? Because shear, moment, bending stress, etc was for suckers? Got all pissy when called on it, then admitted they were really wastewater eng? I remember that thread... Yes, and he's already thrown his brilliance into the mix. Guess which comment was his. |
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LOL the contractor hires a PE durrrr or he aint getting a permit math and science are your friend HOLY SHIT IT'S YOU AGAIN View Quote View All Quotes View All Quotes Quoted:
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Related question. I want to remove/relocate some support beams in my attic. What sort of professional do I look for to hire to tell me which/where to move them? I am already on board with hiring somebody. I just don't know if I need an architect, a structure engineer, or what. I don't want to go with either total overkill, or someone who is just guessing. Who is the right professional? Thanks. :) I would hire a reputable general contractor who does that kind of work. Engineer is overkill. They probably wouldn't know what they're doing anyway. LOL the contractor hires a PE durrrr or he aint getting a permit math and science are your friend HOLY SHIT IT'S YOU AGAIN Sometimes I wonder if you're really an engineer or pretend to be one here. Nobody hires a PE to design houses unless it's some kind of extravagant design that requires a unique structure. It's not required by law to have a PE seal a single family house design. Only "real property" requires a PE seal on the plans. |
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Wasn't that the thread where somebody tried to size a beam based on deflection only? Because shear, moment, bending stress, etc was for suckers? Got all pissy when called on it, then admitted they were really wastewater eng? I remember that thread... ETA: asked and answered, doh! View Quote View All Quotes View All Quotes Quoted:
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and the advice was flat wrong to the point of being potentially deadly Wasn't that the thread where somebody tried to size a beam based on deflection only? Because shear, moment, bending stress, etc was for suckers? Got all pissy when called on it, then admitted they were really wastewater eng? I remember that thread... ETA: asked and answered, doh! My answer wasn't wrong. Not my fault you all don't know what's going on. Basically, all the help OP got here was a bunch of people piping in to say they're an engineer, followed by a fancy explanation to cover the fact that they haven't a clue how to even approach OP's problem. |
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I'm a Civil PE and, if I were building my home there, I would not use the the clay material you have discribed as subgrade for any type of footing whatsoever certainly not one designed for a 2000PSF bearing. You need the advise of a local engineer or use a local EXPERIENCED contractor to build youor home that will guarantee his work long term.
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Sometimes I wonder if you're really an engineer or pretend to be one here. Nobody hires a PE to design houses unless it's some kind of extravagant design that requires a unique structure. It's not required by law to have a PE seal a single family house design. Only "real property" requires a PE seal on the plans. View Quote You are wrong. Actually, any design outside the prescriptive standards of the building codes requires the services and siganture/seal of a Registered Design Professional. Ask me how I know. |
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You are wrong. Actually, any design outside the prescriptive standards of the building coded require the services and siganture/seal of a Registered Design Professional. Ask me how I know. View Quote View All Quotes View All Quotes Quoted:
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Sometimes I wonder if you're really an engineer or pretend to be one here. Nobody hires a PE to design houses unless it's some kind of extravagant design that requires a unique structure. It's not required by law to have a PE seal a single family house design. Only "real property" requires a PE seal on the plans. You are wrong. Actually, any design outside the prescriptive standards of the building coded require the services and siganture/seal of a Registered Design Professional. Ask me how I know. I highlighted what is the same so you can better understand what I said. Also, real property is a specific legal term that describes what is required to be sealed by a PE. |
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I see you're from VA? Please tell me you don't seal anything structures-related along the Gulf Coast. No, really. Please, I'm raising a family here. View Quote View All Quotes View All Quotes Quoted:
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Nobody hires a PE to design houses unless it's some kind of extravagant design that requires a unique structure. I see you're from VA? Please tell me you don't seal anything structures-related along the Gulf Coast. No, really. Please, I'm raising a family here. Don't worry, you're safe from me. |
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Basically, all the help OP got here was a bunch of people piping in to say they're an engineer, followed by a fancy explanation to cover the fact that they haven't a clue how to even approach OP's problem. View Quote Hmmm. That's one interpretation. Or the rest of us were professional enough to either recommend licensed design guidance or just plain STFU and laugh at the shenanigans. |
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Quoted: I believe this is the one... http://www.ar15.com/forums/t_1_5/1376658__ARCHIVED_THREAD____Need_load_capacity_of_6x6_steel_I_beam.html&page=1 View Quote View All Quotes View All Quotes Quoted: Quoted: Quoted: Quoted: Quoted: Go hire a real engineer because the advice you get online will be worth what you paid for it. I'm a structural engineer I have designed bridges with 12 foot tall curved steel plate girders. I have run 100 million dollar projects even other engineers say that I'm an annoying prick big brain the last time somebody asked engineering advice on this forum, the advice he got was offered by somebody professing to be a civil engineer and the advice was flat wrong to the point of being potentially deadly don't be a fool, get the design done properly by a local engineer Heh....I remember that thread. Most everyone's answers here are correct. Hire a PE. Can someone link that thread for me? Thanks in advance. I believe this is the one... http://www.ar15.com/forums/t_1_5/1376658__ARCHIVED_THREAD____Need_load_capacity_of_6x6_steel_I_beam.html&page=1 Well that escalated quickly lol. |
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I highlighted what is the same so you can better understand what I said. Also, real property is a specific legal term that describes what is required to be sealed by a PE. View Quote View All Quotes View All Quotes Quoted:
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Sometimes I wonder if you're really an engineer or pretend to be one here. Nobody hires a PE to design houses unless it's some kind of extravagant design that requires a unique structure. It's not required by law to have a PE seal a single family house design. Only "real property" requires a PE seal on the plans. You are wrong. Actually, any design outside the prescriptive standards of the building coded require the services and siganture/seal of a Registered Design Professional. Ask me how I know. I highlighted what is the same so you can better understand what I said. Also, real property is a specific legal term that describes what is required to be sealed by a PE. Must be philosophical, because I don't consider seismic design, wind design, etc., to be "extravagances". BTW, I've been paid for structural design services for hundreds of single family residences, from 600sf cabins, to tract homes, to massive luxury homes. You are very dangerous. |
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Best to weed out the crap advice early on things like this. Expansive soils (if that's what the OP has), can cause very costly problems down the road.
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Sometimes I wonder if you're really an engineer or pretend to be one here. Nobody hires a PE to design houses unless it's some kind of extravagant design that requires a unique structure. It's not required by law to have a PE seal a single family house design. Only "real property" requires a PE seal on the plans. View Quote View All Quotes View All Quotes Quoted:
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Related question. I want to remove/relocate some support beams in my attic. What sort of professional do I look for to hire to tell me which/where to move them? I am already on board with hiring somebody. I just don't know if I need an architect, a structure engineer, or what. I don't want to go with either total overkill, or someone who is just guessing. Who is the right professional? Thanks. :) I would hire a reputable general contractor who does that kind of work. Engineer is overkill. They probably wouldn't know what they're doing anyway. LOL the contractor hires a PE durrrr or he aint getting a permit math and science are your friend HOLY SHIT IT'S YOU AGAIN Sometimes I wonder if you're really an engineer or pretend to be one here. Nobody hires a PE to design houses unless it's some kind of extravagant design that requires a unique structure. It's not required by law to have a PE seal a single family house design. Only "real property" requires a PE seal on the plans. LOL who the fuck would pretend to be a structural engineer on the internet? wouldn't that be kind of weird? I have a master's degree in engineering and 25 years of experience designing large structures, mostly bridges. you can ask me any question at all about bridge design, no matter how obscure, I can tell you not only the theory, but the practical method of design and the history of how the design process evolved I never do any residential work, except for my own use. regarding a PE seal requirement on the plans: that depends on who is issuing the permit some townships will make you get a PE seal on a 2 foot high garden wall |
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