How to repair plaster board cracks

Written by anne rose
  • Share
  • Tweet
  • Share
  • Email

Plaster board is one of the most common type of walls. Cracks in plaster board, which is a gypsum plaster centre bonded to layers of fiberboard, can be repaired with a special drywall repair tape and plaster. Cracks can be caused by shifting and settling of a building, or by the holes made to hang pictures or fixtures. The process of patching a crack in plaster board actually first makes the crack deeper and wider, which looks distressing, but results in a more satisfactory repair.

Skill level:

Other People Are Reading

Things you need

  • Screwdriver
  • Can opener
  • Self-adhesive drywall mesh
  • All-purpose drywall compound
  • Drywall knife

Show MoreHide


  1. 1

    Score and define the plaster board crack with a screwdriver or other sharp edge. A can opener works well. Clean dust and debris from area around the plaster board crack.

  2. 2

    Cover the plaster board crack with self-adhesive fibre mesh.

  3. 3

    Mix all-purpose drywall compound with water, following the manufacturer's instructions.

  4. 4

    Apply the drywall compound to the plaster board crack, over the drywall mesh, with a drywall knife. Several coats may be required; the level of the repair should be flush with the wall surface.

  5. 5

    Sand the repaired plaster board crack with fine sandpaper. Prime and paint to match.

Don't Miss

  • All types
  • Articles
  • Slideshows
  • Videos
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the site, you consent to the use of cookies. For more information, please see our Cookie policy.