BuildBatch

Shopping list for wallpapering a 3 × 4 m bedroom

This example papers all four walls of one rectangular bedroom. Rolls are counted from whole drops; doors and windows are not taken off because offcuts are not assumed to make another full drop.

Worked example · Updated 1 October 2026

How this example was made

It was worked out when this page was built, by the same room planner and formulas as the editable list. The room figures are round examples. Product coverage, pack and allowance figures are the planner’s labelled generic examples, not figures for a product.

AI tools drafted the page and automated tests compare its list with the planner. It has not been checked by a tradesperson or anyone outside the build. No price is shown or used.

The room and assumptions

Room: 4 m × 3 m, 2.4 m high; 1 door, 1 window. Work: wallpapering.

  • One rectangular room, 4 m × 3 m, 2.4 m high, measured in metres.
  • 1 door, 1 window taken off the wall area; nothing is taken off the ceiling or the floor.
  • Wallpaper: doors and windows are not taken off. The short drops above and below them come from the same rolls, and every corner wastes a strip, so whole drops are counted for every wall. The label's roll size, pattern repeat and match decide the drop length.
  • Every quantity is rounded once, at the end, up to whole packs. Working uses unrounded figures.
  • Wallpaper use generic example figures, not the figures of any product. Enter the figures from the tin or pack for a closer answer.

The shopping list

9 lines marked Need and 4 marked Check first. Lines that this job does not need are left out here; the full planner shows them too.

Check before using this list

  • No spare drop: one mis-cut leaves you a roll short. One more roll with the same batch number is easier to buy now than a match later.

Need

  • Wallpaper

    Need

    7 × roll (53 cm × 10.05 m)

    Why, and what to check

    Walls 4 m, 3 m, 4 m, 3 m: 28 drops at 53 cm a drop, each 2.5 m long; 4 drops from each roll.

    Check: Buy every roll with the same batch number on the label: colours differ between batches.

    Working: 28 drops of 2.5 m; 4 drops from each 10.05 m roll; 7 rolls, 0 spare drops.

  • Sugar soap or wall cleaner

    Need
    Why?

    Paper sticks to a clean wall. One container does a room.

  • Abrasive paper or sanding sponges

    Need
    Why?

    For rubbing filler flat.

  • Dust sheets

    Need
    Why?

    To cover the floor: the floor is 12 m².

  • Filling knife and scraper

    Need
    Why?

    For filling and for removing anything loose.

  • Hanging kit: pasting table, paste brush, smoothing brush, seam roller

    Need
    Why?

    To paste the drops and hang them flat, with neat seams.

  • Sharp knife with spare blades, scissors, a straight edge

    Need
    Why?

    A blunt blade tears wet paper: change it often.

  • Plumb line or spirit level, tape measure, pencil

    Need
    Why?

    The first drop on each wall is hung to a true vertical line, not to the corner.

  • Bucket and sponge

    Need
    Why?

    To wipe paste off the face of the paper and the skirting.

Check first

  • Wallpaper paste

    Check first
    Why, and what to check

    For 7 rolls. Some papers are paste-the-wall, some are ready-pasted and need none.

    Check: The paper's label says which paste, or none; the packet says how many rolls it hangs. Enter that and it will be counted.

  • Lining paper

    Check first
    Why, and what to check

    Hung first on poor or patched walls, and under heavy or expensive papers.

    Check: Whether you need it depends on the walls and the paper: the label often says. If you do, it is counted the same way as the paper.

  • Sizing the walls

    Check first
    Why, and what to check

    New or bare plaster, and very porous walls, are sealed with size or diluted paste so the paper slides into place and sticks.

    Check: The paste's instructions say when walls need sizing and how.

  • Filler for cracks and holes

    Check first
    Why, and what to check

    Small cracks and holes are filled and sanded flat first: paper shows every bump.

    Check: How much depends on the walls: a small tub is usual for a sound room.

Before you use it

  • Measure the room height and perimeter again.
  • Use the roll width, roll length, pattern repeat and match from the wallpaper label.
  • Check which paste, wall preparation and lining paper the wallpaper maker requires.

Built and checked with AI tools, not yet by a tradesperson or anyone outside the build. Estimates are arithmetic on your measurements and the figures shown with them: follow each product's own instructions.

All example shopping lists · How the estimates are worked out