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The Facts About Plasterboard (Gyproc) That Every Handyman Should Know

The Facts About Plasterboard (Gyproc) That Every Handyman Should Know Plasterboard, commonly known as Gyproc, is a versatile building material widely used in construction for creating walls and ceilings. Here are the essential facts every handyman should know about plasterboard, covering its materials, manufacture, installation, and most importantly, how to repair it.

Materials and Manufacture

  1. Core Composition: Plasterboard consists of a gypsum core, which is a natural mineral known for its fire-resistant properties. Gypsum is combined with additives to enhance its performance.
  2. Facing Materials The gypsum core is sandwiched between two sheets of paper or fiberglass mats. This facing material provides the board with additional strength and a smooth surface for finishing.
  3. Manufacturing Process The manufacturing process involves mixing the gypsum with water and other additives to form a slurry. This is then spread out between the facing materials and dried in large ovens. The dried boards are cut to size and ready for use.


  1. Cutting: Plasterboard can be cut to size using a utility knife or plasterboard saw. Score the surface and snap the board along the scored line for a clean cut.
  2. Fixing: Plasterboard is typically fixed to wooden or metal studs using screws or nails. Ensure the boards are securely fastened to prevent movement.
  3. Jointing: Joints between plasterboard sheets are taped and filled with jointing compound to create a seamless finish. This is an essential step before painting or applying other finishes.
  4. Finishing: Once the joints are dry and sanded smooth, the plasterboard can be painted, wallpapered, or finished with other decorative materials.


  1. Small Holes: For minor damage such as small holes, use a patching compound to fill the hole. Sand the area smooth once the compound is dry, then prime and paint to match the surrounding surface.
  2. Cracks: Hairline cracks can be filled with a flexible filler. For larger cracks, use jointing tape and compound to reinforce the area before sanding and painting.
  3. Large Holes or Damage: For extensive damage, cut out the damaged section using a utility knife or saw. Cut a new piece of plasterboard to fit the hole and secure it with screws or adhesive. Tape and fill the joints, then sand and finish as required.
  4. Water Damage: If plasterboard has been exposed to water, it may need to be replaced entirely. Cut out the affected area, ensure the underlying structure is dry and undamaged, and install a new piece of plasterboard. Use mold-resistant plasterboard in areas prone to moisture.


Understanding the basics of plasterboard, from its materials and manufacturing to installation and repair, is crucial for any handyman. With the right techniques and tools, you can ensure that plasterboard installations are durable and repairs are seamless, maintaining the integrity and appearance of the surfaces in your home or projects.


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