Drywall Repair - Cutting back to studs

Big holes caused by stray 2x4's and the like look like a major problem but may be easily repaired.  This guide will show you how to fix the hole

Large hole in drywall
Items needed:
Joint compound
150 grit sandpaper
Piece of drywall
Drywall Screws (at least 1 1/4")
Screwgun
6" or larger tape knife
Utility (razor) knife
Drywall joint tape>
Safety Suggestions and Tips
Measure twice, cut once
Use new sharp blade and keep it clean
Do not freehand score wallboard
Level of difficulty


Time Required:
 6 hour

Steps


Slide tape measure beneath for distance

Step 1:

It is necessary to cut the drywall back to the studs in order to repair large holes.  Stick a measuring tape into the hole in each direction to determine the location of the studs. 


Transfer distance, plus half of stud thickness

Step 2:

Transfer the measurement to the outside of the wall and mark the location.  This is the inside edge of the stud.  You need to cut to the middle of the stud so add 3/4" to your measurement.


Mark off cut with square

Step 3:

Using a square or other straight-edge, mark the location of the studs on the outside of the wall.  Now make a perpendicular line to the studs in order to form a box.  This is the line that you will cut along.


Score along marks

Step 4:

Using a razor knife, cut along the marks you just made.


Score diagonals

Step 5:

Next, make diagonal cuts from the corners toward the center, forming a big "X."  


Break out interior

Step 6:

Using a hammer, or your hand, break out the box you just cut.  Pull out the pieces you removed without tearing up the paper.


Clean up edges and corners

Step 7:

Use a razor knife to clean up the cuts and remove the paper. 


Clear debris

Step 8:

Get rid of all of the dust with a small brush.


Cut repair patch piece

Step 9:

Measure the hole you cut and cut a piece of drywall to match.  It is advisable to use a piece of the same thickness.  Sometimes it is necessary to bevel the back edges of the patch to make sure that it settles to the appropriate level. 


Use drywall screws to attach

Step 10:

Screw the piece of drywall to the studs. 


Drive until flush and set

Step 11:

Drive the screws until they are just below the surface of the drywall.


Apply joint compound

Step 12:

Apply joint compound to the joints, forcing it into the seams. 


Use tape over seams

Step 13:

Tear off an appropriate length of tape and cover the seams.  Try not to overlap the tape at the corners.


Feather with wide knife

Step 14:

Using a 6" knife (bigger is ok) to work the tape and pull the mud from underneath the tape.   


Second and third coating

Step 15:

Clean up any marks in the mud and let dry overnight. Lightly sand the seams and clean up.  Apply second coat of compound. and repeat.