Drywall mud, a joint compound, is a gypsum-based paste used to finish drywall joints and corners in new installations. It's also handy for repairing cracks and holes in existing drywall and ...

If you're skilled enough to handle a DIY drywall installation, you probably already know that joint compound/drywall mud is the way to go, but for smaller projects, when does it make sense to switch ...

Use sandpaper or a drywall sanding sponge to smooth out the remaining rough patches. Inspect the wall for imperfections. You may need to use the joint compound to fill holes and cracks.

After hanging the drywall, apply a layer of joint compound (also known as drywall mud) over each seam to fill any gaps and create a level surface. Use a wide drywall knife to spread the compound ...