What You Need to Paint a Room: Decorating Checklist (UK)

The short answer

Painting a room needs a roller, two or three brushes and a steady step ladder, and the preparation kit makes the difference: dust sheets, filler, sandpaper and masking tape. A 4 × 3 m room with 2.4 m walls takes 5.1 litres for two coats on the walls, 2.0 litres for the ceiling and 38 m of masking tape. The checklist is below, and the room decorating materials calculator works out the amounts for your room.

Room Decorating Calculator (UK)Litres of paint, tins to buy, masking tape and skirting for a room.
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The checklist, stage by stage

1. Protect and prepare

ToolWhat it is forOwn or hire
Dust sheetsCotton for the floor, polythene for furnitureOwn
Masking tapeMasking skirting, frames, sockets and the ceiling lineBuy per job
ScrewdriverLoosening socket and switch faceplates (switch off first)Own
Filling knife and fillerFilling cracks and holesOwn
Sandpaper or a sanding blockSmoothing filler and keying glossy paintBuy per job
Sugar soap and a spongeWashing grease and dirt off the wallsBuy per job
Decorator's caulk and a gunFilling gaps along the skirting and framesOwn the gun

2. Cut in and roll

ToolWhat it is forOwn or hire
Angled brush, about 50 mmCutting in at corners, the ceiling and the woodworkOwn, if you clean it
Roller frame, 9 inchRolling the walls and ceilingOwn
Roller sleevesShort pile for smooth walls and gloss, medium pile for emulsion on most wallsBuy per job
Roller trayLoading the rollerOwn
Extension poleReaching the ceiling and the tops of walls from the floorOwn
Step ladderCutting in at the ceilingOwn or borrow

3. Clean up

ToolWhat it is forOwn or hire
RagsWiping drips straight awayOwn
Brush combCleaning brushes so they lastOwn
Cling film or bagsWrapping brushes and rollers between coatsBuy per job

Safety and ventilation

  • Open the windows while you paint and while it dries.
  • Switch off at the consumer unit before you loosen sockets and switches.
  • Use a sound step ladder on a level floor, and do not stand on the top step.
  • Old paint in older homes can contain lead: do not dry-sand it. Test it first if you are not sure.
  • New plaster needs a mist coat (thinned emulsion) before the first full coat.

Paint and tape for other room sizes

2.4 m walls, one door, one window, two coats at 12 m² per litre. Masking tape is counted along the skirting, the ceiling line and round the door and window, in 50 m rolls (check yours). The tools do not change with the room, but the paint does: a 5 × 4 m room takes 10.0 litres for the walls and ceiling together.

RoomWall paintCeiling paintMasking tape
3.0 × 3.0 m4.3 L1.5 L34 m (1 roll)
4.0 × 3.0 m5.1 L2.0 L38 m (1 roll)
4.5 × 3.5 m5.9 L2.6 L42 m (1 roll)
5.0 × 4.0 m6.7 L3.3 L46 m (1 roll)

See how much a tin of paint covers, the common mistakes when painting a room, and the decorate a room planner for the order of work. Estimates only: check the coverage on your tin.

Frequently asked questions

What do I need to paint a room?

Paint, dust sheets, masking tape, filler and a filling knife, sandpaper, sugar soap, an angled brush, a 9 inch roller with sleeves and a tray, an extension pole and a step ladder.

What roller sleeve should I use for walls?

A medium pile sleeve for emulsion on most walls and ceilings, and a short pile for very smooth walls or for gloss and eggshell. Check the advice on the paint tin.

How much paint for a 4 x 3 m room?

5.1 litres for two coats on 2.4 m walls with one door and one window, and 2.0 litres for the ceiling.

Do I need to wash walls before painting?

Yes, in kitchens, bathrooms and anywhere hands touch. Sugar soap removes grease so the new paint grips, then rinse with clean water and let the wall dry.

Paint Calculator (UK, litres)Litres of emulsion for a room, with the tin sizes to buy.
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Skirting Board Calculator (UK)Lengths of skirting board and coving for a room.
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Room Decorating Calculator (UK)Litres of paint, tins to buy, masking tape and skirting for a room.
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Tools & materials for this project

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Estimates only. Quantities depend on your materials, site and supplier. Confirm important numbers before you order, and check the Building Regulations and any planning rules for anything structural or close to a boundary.

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