How to Properly Install Drywall
Before you start to hang drywall, make sure that you have installed any plumbing, electrical, and heating/cooling systems. You should also have the building inspector check all systems before you put in the drywall.
Always place a bead of glue on every strapping or joist before hanging drywall over them. Also, drive five screws across a single joist or strapping perpendicular to it.
Measure
Drywall is cut before it's hung so that the sheets fit loosely into place, allowing for expansion and contraction without damaging the paper or the edges. To make lengthwise cuts, mark the drywall sheet with a pencil and a t-square, then follow the t-square's factory edge to guide your utility knife. For width-wise cuts, use the t-square to draw a line from one end of the drywall sheet to the other.
For short lines of layout dimensions, you can simply score the drywall with your utility knife. When you're working around outlets and windows, however, it's a good idea to mark the area with a pencil, then measure and transfer that measurement to the drywall sheet.
If you're cutting a length-wise cut, lean the drywall against the wall or a frame to make it easier to hold. Otherwise, place it on the floor and lock a t-square against its side to guide your utility knife.
Cut
Like the old construction adage says, measure twice and cut once. It will make the process much easier and save you a lot of time.
When you're ready to cut, use a drywall square to mark your line, then run a utility knife along the lines. Apply pressure and the drywall will snap. You may want to sand the jagged edges to smooth them.
Start with the long drywall seams because these are tapered and therefore easier to finish. Don't worry about "butt joints" (where drywall sheets meet at the un-tapered short edges), since these can be filled and hidden with setting-type joint compound.
Before you cut, if your project requires hanging things such as a picture or TV, find wood studs to attach them to. Otherwise, they could fall to the floor and rip the drywall. If there isn't a stud behind the wall, install a toggle bolt instead. The manufacturer's instructions will give you the specs for drilling holes for these fasteners.
Tape
The drywall panels are held together with special tape and covered with a spackle-like compound called joint compound. This process, known as "mudding" and taping, hides the seams between drywall sheets, and also covers and seals nail and screw dimples. It's important to work carefully when taping drywall. Wet compound splatters easily and can make a mess. Consider wearing a hat, protective eyewear (drywall compound stings) and old clothes, and covering the floor with a canvas drop cloth.
Start with a wall's long seams, then move on to the short ends, called butt joints. These are easier to mud and tape because the drywall's tapered edges create a natural valley for the mud. If you're going to be using paper tape on butt seams, consider using metal-reinforced tape that combines a paper angle with a metal flange that gives your drywall knife a rigid surface to ride along. It makes for a much more precise inside corner than standard paper options.
Hang
Most people have hung some sheetrock in their lives—either helping friends remodel rooms or finishing off an unfinished basement. But it's not a job that anyone should do alone, and the more you know about how to properly install drywall, the better your finished product will be.
Drywall is heavy, so it's a good idea to hire a helper. Also, remove anything that might be in the way of the drywall installation, including furniture and other possessions, before you start. This will save you time and energy and prevent damage to your belongings.
Position the first drywall sheet so that one edge butts up against the ceiling panel and the other edge fits tightly into the abutting wall. Next, drive five evenly-spaced screws across the drywall and into the strapping or joists below. Be careful not to screw too close to the edges of the drywall—it could puncture or tear the paper. Make sure that the screw heads aren't driven too deep into the drywall, either—this could reduce their holding power.
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Before you start to hang drywall, make sure that you have installed any plumbing, electrical, and heating/cooling systems. You should also have the building inspector check all systems before you put in the drywall. Always place a bead of glue on every strapping or joist before hanging drywall over them. Also, drive five screws across…