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Question DetailsAsked on 9/15/2014

Cost to demo a 16 ' weight bearing wall which contains several electrical plugs? Ceiling will require a header.

Wall has a door, there are about 4 electrical plugs, 2 which will need to be placed elsewhere.
Property is in condo. Area will need to be re plastered .

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1 Answer


In the "Enter Your Question" box of the Ask section above, type in this phrase - load bearing wall - as you finish typing it (or if not, after you hit Ask) it should show 4-5 similar prior questions,, which have responses addressing load bearing versus non-load bearing wall removal, typical costs, etc. In your case, with the 2 outlet relocations, add about $250 probably - assuming it is done under the general contractor's work scope - meaning when wall is opened up to easily move wires. Also, 16' clear span is pretty wide - far more than the normal 8-10 foot opeing, so if the beam is going to support substantial weight overhead, that could complicate matters.

Also, this would be considered a substantial structural modification in most code areas, so you are looking at probably an additional $250-500 for a structural engineer to check out the bearing capacity of floor elements and bearing load, and detail out the modification before you will be able to get a building permit.

When you say replastered- I presume you mean drywall repairs. If actual plastering, then cost goes up a few hundred $ depending on surface area involved. Also, the prior questions presume wood frame wall construction - not brick or concrete, and that there is no more than one floor above the one being modified - not part of a 3-4 story condo or such.

Also, if there are additional occupied (excluding unimproved attic) floors above the one being modified, the work may require installing additional supports at the ends of the header in the walls on one or all lower floors, depending on building design - which could be a problem if you do not own the lower floors. Depending on design of the building, this can sometimes be overcome with stronger and longer beam, bearing on a larger width on each side - though if you are opening up to 16' wide then there is probably no room for that. Certainly, if there are overhead floor beams terminating on top of the existing wall, then the design of the modification is a significant structural change - and even if not, may be such if in high quake zone and this existing wall is designed was a shear wall.

Answered 6 years ago by LCD

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