To lay new concrete sweep and clean the old concrete and saturate the old concrete with water.
How to build a wall on uneven concrete.
Tape a one foot by one foot square of plastic sheeting plastic kitchen wrap will do to the concrete wall in your basement with duct tape and leave it in place for 24 hours.
Pouring a concrete slab isn t difficult but it can be a bit tricky especially if the ground where you are attempting to pour the slab is uneven.
The end result of the project however probably will be.
Building a nonstructural wall is simpler than it looks and even attaching it to concrete isn t a big deal.
Then remove the tape.
Use two 2 by 4s on each end two running length wise on top and a single 2 by 4 on the bottom.
Your local building code may call for the wall to be anchored to the slab with threaded rods.
2 cut each stud individually to length so that top plate is level.
Doing this requires the top plate or string up.
Remove the curb and clean the slab thoroughly with a wire brush.
Floor plate installation when a floor is uneven the best way to frame a new wall is to set the floor and ceiling plates first.
Mark the location of concrete anchors on the concrete slab.
Then fill the holes in the slab with hydraulic cement.
Framing walls on an uneven concrete slab 1 frame walls square on ground and then deal with space between pt seal plate and bottom plate of wall with large shims.
Determine the wall location.
Use a chalk line on the floor to indicate wall placement and cut a.
Then build a perimeter or a wood brace that is the same height as you want the concrete to be.
Screw the ends of the boards together to build a frame that s in the shape you want your slab to be.
Set your single studs every 16 inches.
Make sure the braces are level and lay down a barrier of wire mesh over the existing concrete inside of the barrier.
Build each wall of your frame flat on the ground.
This frame or form will hold the liquid cement in place as it dries.
If you have a door or window in your shed frame it into the wall using doubled up 2 by 4s as well.