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Question DetailsAsked on 6/8/2017

removing concrete- 2 concrete walls 4ft high by 4 ft wide

removal of concrete in an farm building to make a wider opening for a larger door. Very thick old concrete , but I think its about a 5ft by 5ft chunk on each side might not even that big...

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1 Answer


You did not say how thick the wall is, but assuming say about a foot - probably about $400-500 range to have a concrete cutting/removal contractor remove it.

Of course, realize if you are widening the door opening you need a Structural Engineer to evaluate the loads and design the replacement framing to carry the roof loads over that opening, and should also look at the foundation before you cut it. With some designs it is necessary to maintain the continuity of the foundation under the door opening - so you may need not just concrete removal but possibly also new foundation construction under the doorway for that reason - and also possibly new foundation elements at the sides to carry the column loads coming down from the the wider doorframe header beam. OF cocurse, how much you are widening the doorway and how large it is now affects how much of that type of reinforcing is needed - commonly little or none (other than wider header and new/relocated doorway king/trimmer studs) if just widening a mandoor from say 30-36 inch up to say 48-60 inch. Can be moderately significant and critical if you are talking a wide vehicular width sliding/swinging barn door, especially in high snow load areas where the roof load coming down in the walls can be pretty dramatic in a large barn.

Answered 3 years ago by LCD

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