I have a question about removing a post that is either supporting a beam or the post was there because there was a wall on both sides of my living. please take a look at the photo. There's a house that is similar to my house and they have a wall on both sides. I'm thinking the reason why they put a post because they remove the wall. Now my next question is how long should a beam be without a support? Thanks in advance.enter image description here enter image description hereenter image description hereenter image description here

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    $\begingroup$ This is really not a question you should be asking the Internet. This is a question for a civil engineer. The answer is going to depend on the loading and, importantly, your local building codes. In thinking of a typical door installation, you might also have to reinforce where the ceiling beams meet the exterior (I'm assuming) wall, like the cripple studs that support the header above a door. Talk to a professional. If you pull these out and the ceiling collapses, insurance adjusters will compare your floor plan with the blueprints and building permits and find you responsible for everything. $\endgroup$ – Chuck Dec 14 '18 at 19:12