Mark the corner layout lines on the floor, walls, and ceiling
Measure and cut the studs, plates, and blocking to the required lengths
Build the corner with the required number of studs for drywall backing
Position the corner studs so the faces are plumb and aligned with the wall layout
Nail or screw the corner studs to the top plate and bottom plate
Add blocking or backing between studs if needed for drywall or sheathing support
Check the corner for square, plumb, and straightness
Secure the framing with the required fasteners at all connections
Install any needed headers, trimmers, or additional framing members nearby
Recheck measurements before covering the framing