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NOC 2021 Version 1.0


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73102 – Plasterers, drywall installers and finishers and lathers

Plasterers apply finish, and maintain and restore plaster or similar materials, on interior and exterior walls, ceilings and building partitions to produce plain or decorative surfaces. Drywall installers and finishers install and finish drywall sheets and various types of ceiling systems. Lathers install support framework for ceiling systems, interior and exterior walls and building partitions. They are employed by construction companies and by plastering, drywalling and lathing contractors, or they may be self-employed. Apprentices are also included in this unit group.


Example titles

  • Acoustical ceiling installer
  • Ceiling installer
  • Drywall applicator
  • Drywall finisher
  • Drywall installer and finisher apprentice
  • Drywall taper
  • Lather
  • Lather (interior systems mechanic)
  • Lather apprentice
  • Plasterer
  • Plasterer apprentice
  • Sheetrock applicator
  • Wood lather

Main duties

This group performs some or all of the following duties:
    • Clean and prepare surfaces
    • Mix plaster ingredients in trough to desired consistency
    • Apply, level and smooth coats of plaster using trowels, floats, brushes and spraying equipment
    • Trowel or spray coats of stucco over exteriors of buildings to form weatherproof surfaces
    • Finish corners and angles and create decorative designs in finish coat, if required
    • Cure freshly plastered surfaces
    • Mould and install ornamental plaster panels, cornices and trim
    • Spray acoustic materials or texture finish over walls and ceilings.
    Drywall installers and finishers
    • Measure, cut and fit drywall sheets for installation on walls and ceilings
    • Position and secure sheets to metal or wooden studs or joists
    • Cut and install metal corner beads to protect exterior corners
    • Fill joints, nail indentations, holes and cracks with joint compound using trowel and broad knife
    • Tape over joints using taping machine and embed tape in compound
    • Smooth out excess compound and allow coat to dry
    • Apply successive coats of compound and sand seams and joints
    • Fabricate and install suspended metal ceiling grids and place in panels to form acoustical and coffered ceilings.
    • Prepare wall and ceiling layouts
    • Install metal stud framing and furring for interior drywall or plaster walls and ceilings, using hand and power tools
    • Attach metal or gypsum lath to studs or furring using nails, screws, clips or wire ties
    • Cut openings in lath for heating and ventilation piping, ducts and electrical outlets
    • Install corner beads and wire mesh around beams to which plaster is to be applied
    • May install acoustic tile, hangers for suspended ceilings and metal studs for composition wallboard or lath.

Employment requirements

  • Completion of secondary school is usually required.
  • Completion of a three- or four-year apprenticeship program in plastering, drywalling or lathing or a combination of over three years of work experience and some high school, college or industry courses in plastering, drywalling or lathing is usually required.
  • Plasterer trade certification is compulsory in Quebec and available, but voluntary, in Ontario, Saskatchewan and British Columbia.
  • Drywall installer and finisher trade certification is available, but voluntary, in British Columbia.
  • Trade certification for lathers (interior systems mechanics) is compulsory in Quebec and available, but voluntary, in all other provinces and the Yukon.
  • Red Seal endorsement is also available to qualified lathers (interior systems mechanic) upon successful completion of the interprovincial Red Seal examination.

Additional information

  • Progression to supervisory positions is possible with experience.
  • The Red Seal endorsement allows for interprovincial mobility.


  • Contractors and supervisors, other construction trades, installers, repairers and servicers (72014)

Breakdown summary

Broad occupational category
7 – Trades, transport and equipment operators and related occupations
3 – Occupations usually require a college diploma or apprenticeship training of less than two years; or more than six months of on-the-job training
Major group
73 – General trades
Sub-major group
731 – General construction trades
Minor group
7310 – Concrete finishers, tilesetters and plasterers
NOC 2021 Version 1.0
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