Spike's Calculators

Interior Finishing

Plasterboard Calculator

Calculate the amount of plasterboard needed from square metres of an area that needs to be boarded.

Plasterboard Materials

Square Metres to be Boarded
Board Size length:
Waste Percentage%


Boards Needed #
Boards Needed Including Waste #
Lenght of Tape Needed m
Number of Screws #
Lightweight All Purpose Joint Compound litres

The Calculation

  1. the area that needs to be boarded measured in square metres
  2. the size of board you are using measured in millimetres
  3. waste factor in a percentage


  1. number of plasterboard's needed
  2. number of boards including waste factor
  3. tape needed in lineal metres of tape
  4. number of screws needed
  5. lightweight all purpose compound in litres
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