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Redecorate a Room: Project Planner

Enter the room size once, then pick the jobs you're doing: paint, wallpaper, skirting and flooring. Save each step to one job for a single shopping list.

Last checked 19 October 2026 by the UkToolCalc team

Your measurements

Enter them once. Every step opens with them filled in, so you only check the details.

m
m
m
  1. 1

    1. Paint for walls and ceiling

    Litres and the cheapest mix of tins, for any number of coats.

    Open 1. Paint for walls and ceiling
  2. 2

    2. Wallpaper (optional)

    Rolls for the whole room or a feature wall, allowing for the pattern repeat.

    Open 2. Wallpaper (optional)
  3. 3

    3. Skirting boards

    Lengths to order, after door openings, with offcuts for the corners.

    Open 3. Skirting boards
  4. 4

    4. Flooring

    Packs of laminate, vinyl or wood, with underlay and a cutting allowance.

    Open 4. Flooring

How to plan redecorating a room

Redecorating goes faster when you buy everything in one trip. Enter the room size once, open each step you're doing, and tap Add to job under each result. The job gives you one shopping list to take to the shop or send to your decorator.

  • Prep first: fill cracks, sand, and wash walls down. Allow a filler, sandpaper and masking tape in your budget.
  • Top down: ceiling, walls, then woodwork. Paint skirting before fitting it if it's new.
  • Floor last: fit new flooring once the painting is finished.

What a 4m × 3m bedroom needs

With 2.4m ceilings, one door and one window:

  • Paint: about 30m² of walls, so roughly 5.5 litres for two coats, plus about 2.2 litres for the ceiling.
  • Wallpaper (if you paper instead): about 8 standard rolls including a spare, more with a large pattern repeat. Or just 2–3 rolls for one feature wall.
  • Skirting: about 13m after the doorway, so 4 lengths of 4.2m MDF, one per wall with no joins.
  • Flooring: 12m² plus 10% is about 6 packs of 2.22m² laminate, with underlay and beading.

Each step above opens with your room size filled in, so you only need to check the details, such as tin sizes, pattern repeat and pack coverage, before saving it to the job.

A realistic timetable

For one person, an average bedroom usually takes a long weekend: a day for clearing, filling, sanding and masking, a day to paint the ceiling and walls (two coats need drying time in between), and another day for woodwork and new skirting. Allow a further day for flooring. Wallpapering, new plaster or lots of repairs add time, and new plaster must be fully dry before painting.

Shopping list extras people forget

  • Dust sheets, masking tape and a roller tray with spare sleeves.
  • Filler, a filling knife, sandpaper and sugar soap for washing walls.
  • Decorator's caulk for skirting and frames, plus primer or undercoat for new woodwork.
  • Door bars and beading for the new floor.

Common mistakes

  • Skipping preparation. Paint won't hide cracks or grease. It shows them up.
  • Buying paint in several trips. Mixed colours can vary between batches. Buy it all at once.
  • Laying the floor first. Drips and ladders damage new flooring. Do it last.

Plastering first? Use the plaster calculator for skim coats. If the room needs a new wall, see the stud wall room planner.

Frequently asked questions

What order should you decorate a room in?

Work from the top down: ceiling first, then walls, then woodwork such as skirting and door frames. Fit new flooring last, so it doesn't get paint on it.

How much paint do I need for a room?

An average 4m × 3m bedroom has about 30m² of wall after the door and window. Two coats of emulsion is roughly 5–5.5 litres, plus another 2–2.5 litres for the ceiling.

Do I need a mist coat on new plaster?

Yes. New plaster is very absorbent, so seal it first with a mist coat: watered-down emulsion, or a paint made for new plaster. Wait until the plaster has dried to an even pale colour.

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