It is wrapped in a thick paper coating, is durable and easily cut, trimmed and repaired. Drywall can be used to cover conventional bare stud walls or damaged lath and plaster walls. Because of its unique construction, drywall can be cut, sawed, drilled, bent, nailed, glued, screwed, painted on and papered over. Thinner drywall offers the advantages of being lightweight and easy to manage.
Thick drywall is stiffer and tends to go up flatter.
Check local code for specific requirements of your area. The standard panel is 4 x 8 feet, although 10' and 12' panels are available. Moisture resistant drywall is called greenrock or greenboard and is specially treated for use in bathrooms and other damp areas. The long edges of the panels are tapered to compensate for the thickness of mud and tape used to finish the seams. Drywall panels have one rough and one smooth side.