How to Mud a Sheetrock Wall

Sheetrock is a brand name for a type of drywall panel and is used to create walls. Typically, it is nailed or screwed to wall joists, and then the seams in between the panels are taped. At this stage of the process, "mud" is applied over the tape and over any nail or screw marks on the front of the panel. Mud refers to joint compound. This is used to fill in any marks and create a sturdy bond between the panels of Sheetrock. The application process of the mud is very important to ensure that future cracking does not occur and that the wall can be finished correctly.

Joint compound
Drywall knife
Fine-grit sanding block

Instructions

- 1
  Load up a drywall knife with a small amount of joint compound. Put the compound on the edge of the knife -- not in the center.
- 2
  Scrape the joint compound over the tape on the seams of the Sheetrock. Work side to side instead of up and down. Do not over-apply the mud; this will create a mess that is hard to sand.
- 3
  Fill in the screw or nail dimples with the joint compound. Work each spot independently. Load up the knife with a small amount of compound. Scrape it over the area and smooth out the edges with the edge of the drywall knife.
- 4
  Let the joint compound set until it is hard. This usually takes between four and eight hours, depending on the humidity levels and temperature of the home.
- 5
  Sand the joint compound smooth with a fine-grit sanding block. Unless you will be texturing the wall later, this step is crucial. The entire surface of the drywall panel should be level and smooth to the touch. Stop frequently while you sand and check your progress.

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