How Many Sheets of Plasterboard for a 6m x 5m Room?

A 6 × 5 m room with a 2.4 m ceiling needs 32 sheets of standard 2400 × 1200 mm plasterboard for the walls and ceiling, including 10% waste. That is 21 for the walls alone and 12 for the ceiling alone.

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Your project

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Cuts around doors, windows and corners. 10% is standard.

Results

Example job shown. Change the numbers to match yours.

Sheets of plasterboard
32 sheets
Includes your waste allowance
What to buy
  • Screws (about 11 per m² of board)1,014 screws
  • Rolls of tape (90 m)2 rolls
Area to cover
82.8 m²

Fixings and finishing

Screws (about 11 per m² of board)
1,014 screws
Jointing tape
99 m
Rolls of tape (90 m)
2 rolls
  • Doors and windows are not taken off, because the off-cuts are used up by the waste allowance. Use 12.5 mm board for walls and ceilings at 400 mm stud or joist centres, and 15 mm board where a higher fire rating or more rigidity is needed. Moisture-resistant board suits bathrooms.

Before you buy: round up to whole packs, check the size printed on the label, and add a little spare. Your supplier has the final say.

Plasterboard for a 6 × 5 m room

Counts are for a 6 × 5 m room with a 2.4 m ceiling, standard 2400 × 1200 mm sheets (2.88 m² each) and 10% waste. Doors and windows are not taken off, because the off-cuts are used by the waste allowance.

What you are boardingAreaSheetsScrewsJointing tape
Walls and ceiling82.8 m²321,01499 m
Walls only52.8 m²2166563 m
Ceiling only30.0 m²1238036 m

Other sheet sizes

Sheet sizeSheets needed (walls and ceiling)
2400 × 1200 mm32
3000 × 1200 mm26
1800 × 900 mm57

Waste allowance

WasteSheets (walls and ceiling)
5%31
10%32
15%34

Use the UK plasterboard calculator to change the ceiling height or the sheet size. Board the ceiling first, stagger the joints and use 12.5 mm board at 400 mm centres. Painting afterwards? Try the paint calculator.

Want to change anything else? The calculator above is the full Plasterboard Calculator: edit any number and the results update instantly.

Tools & materials for this project

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Frequently asked questions

How many sheets of plasterboard for a 6m x 5m room?

32 standard 2400 × 1200 mm sheets for the walls and ceiling of a 6 × 5 m room with a 2.4 m ceiling, including 10% waste. The area is 82.8 m².

How many sheets for just the ceiling?

12 sheets for the 30.0 m² ceiling, and 21 for the walls alone. The two do not add up exactly, because each is rounded up to whole sheets.

How many screws and how much tape?

About 1,014 screws, which is about 11 per m² of board, and 99 m of jointing tape (2 rolls of 90 m).

Related sizes and guides

Related sizes

Estimates only. Results assume standard materials and simple shapes. Supplier products vary, and the final call on quantity, structure and safety is yours. Check your local code and your supplier's guidance before ordering.