In my living room I had an archway between the living room and dinning room. I have gutted those room and made it one full living room with a little dining area. Is it possible to keep it open or do I need to put the arch way back
Based on the information you've provided no one can give you an answer.
Does the archway wall have a beam in it that is supporting the ceiling joists and possible second floor?
Any advice given here is general in nature and is not necessarily valid for your given area. If in doubt check with your local codes enforcement department for what is required when doing electrical, plumbing or structural work on your house. Permits may or may not be required in your area and home owners may not be able to DIY some tasks. I have no way of knowing if you have the skills needed to complete the tasks you are asking about, when in doubt seek professional assistance.
My advice may be worth exactly what you pay me for it. :-) For the record I did not stay in a Holiday Inn Express last night.
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