If this wall is not load bearing that might be toletable though it would be better to properly frame around the opening.
Stud out a concrete wall.
And setting the wall out.
Cut your stud the vertical board and place it into the top and bottom plates.
Secure the studs by nailing through.
Fasteners will grip better to clean holes and there will be a lot of concrete dust after you ve drilled the hole.
If it is loadbearing you really want this properly framed or you should consider alternatives like drilling holes through the stud rather than removing part of it.
How to furr out a wall with wood studs.
Cutting out a section of stud weakens the wall.
The stud should be a snug fit but not too snug.
When furring out a wall with wood studs you ll want to space out your furring strips about the same way you ll do with concrete or brick but you ll need to make sure the vertical lines that you draw are directly over the studs.
Assemble the wall frame.
The most common way of building a new wall is to construct it on the floor and then tip it up and attach it.
We want to avoid direct contact of a wood wall with concrete.
Be sure you are leaving at least a space between the studs and the foundation wall.
For some homes this is 16 inches apart.
On the floor lay out and mark the location of the wall fasten the steel track photo 2 and then locate the position of the ceiling track using a plumb bob or a level held against a steel stud.
Align each stud with the 16 inch on center marks made earlier.
You can also move a wire brush in and out of the hole to remove any leftover debris.
Otherwise build an actual stud wall and cover it and the insulation with a vapor barrier.
Measure the wall stud height in three or four spots and cut the studs to the shortest dimension using a portable circular saw.
Your top and bottom plate should be perfectly aligned.
Clean the dust out of the hole.
That way you ll be able to seal this type of outside wall with a continuous moisture barrier in cooler climate zones.
Use a compressed air can or a vacuum cleaner to work out debris and dust in the hole.
Before you tie the partition walls to exterior stud walls non masonry without foam staple 2 foot wide strips of polyethylene over the 2 6 backers.
These anchor bolts are usually secured in the concrete by means of an anchor typically made out of lead.
On a finished ceiling where the stud wall framing track runs perpendicular to the joists fasten the track to the underlying joists with 1 1 2 in.
Don t build tip up walls if the concrete floor is out of level.
Concrete walls may have a purpose but beauty and warmth aren t it.