Alcoves

Wallpaper for an Alcove: How to Measure and Cut It Right

Updated: Aug 2026

An alcove — the recess either side of a chimney breast, or any similar wall niche — is narrow, often has a different depth to the wall it sits beside, and gets skipped or double-counted in a lot of rough estimates. It's also one of the most common places people choose to wallpaper on its own, without touching the rest of the room, which a whole-room calculator handles even worse. Here's how to measure and cut it properly instead of guessing. A worked example below shows exactly how alcove and chimney-breast strips combine into a roll count.

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Measure the alcove as its own wall section

An alcove has its own width, and often its own height if there's a chimney breast shelf or bulkhead above it. Measure it separately from the chimney breast face and the rest of the room wall, the same way you'd treat a hallway as a set of individual straight runs — one alcove, one measurement, not folded into a bigger total.

Keep the pattern matched across the chimney breast and both alcoves

If the wallpaper is meant to read as one continuous design across the chimney breast and the alcoves either side, the strips have to be planned together so the pattern lines up around each corner — cutting each section in isolation is the most common way a chimney-breast job ends up visibly mismatched at the corner seam.

Fitted shelving reduces usable alcove area

Built-in alcove shelving or a cupboard takes real wall out of the count, the same way a wardrobe does in a bedroom — measure only what will actually be visible once the shelving is back in place, not the alcove's full open dimensions.

Small alcoves waste more roll per strip than a full wall

Because an alcove is narrow, each strip cut for it uses only a fraction of a roll's width, and the rest is offcut. On a job with two alcoves and a chimney breast, expect a higher waste percentage than a similarly-sized flat wall — it's normal, not a sign the estimate is wrong.

The alcove's side walls (the return) are their own small strips too

Where an alcove meets the chimney breast at a right angle, that short return wall — often only a few centimetres deep — still needs its own strip if it's being papered rather than painted. It's easy to forget entirely because it's so narrow, but skipping it in the measurements means the plan is missing a wall, not just under by a small margin.

A worked example: two alcoves and a chimney breast

Take a chimney breast 1.4m wide with two alcoves each 0.9m wide, papered to a shelf height of 2.3m, using a 52cm-wide, 10m roll. The chimney breast needs three strip-widths, and each alcove needs two - seven strips in total. At a cut length of about 2.35m per strip with trim allowance, one roll gives four usable strips, so seven strips need two rolls before adding a buffer roll for waste or mistakes. Treat two as the working minimum, not the final order.

Ordering enough for an alcove-only job

Alcove strips are narrow, so it's tempting to order the bare minimum and trust the offcuts to stretch further than they will. Pattern repeat and the return wall usually eat into that margin faster than expected. Order at least one extra roll beyond the calculated total on any job with a repeat over about 30cm, and check the batch number matches across every roll before cutting - alcove strips sit right next to the chimney breast, where a shade mismatch is most visible. For design inspiration for alcoves, see alcove wallpaper ideas

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Common questions

Should I paper the alcove and chimney breast in the same wallpaper?

Most jobs do, since it reads as one wall visually — but it's a design choice. If the alcove is going in a plain or contrasting paper instead, measure and order it as a completely separate section rather than trying to match a repeat that won't be shared.

Does an alcove need its own roll, or can it share with the rest of the room?

It draws from the same roll count as the rest of the room's wallpaper, as long as it's the same paper — the planner's cutting plan will place the alcove's strips on whichever roll has the offcut to fit them, rather than treating it as a separate purchase.

Is an alcove-only job worth using a full planner for, or is it simple enough to eyeball?

A single plain-paper alcove is often simple enough to eyeball, but as soon as pattern repeat, a shelving unit, or matching across a chimney breast is involved, the strip-level detail is exactly where a rough guess goes wrong — which is the situation this guide, and the planner, are built for.

Do I need extra paper for an arched alcove top?

Yes - an arched top means some strips are cut short and shaped to the curve, so the offcut is rarely reusable elsewhere. Budget extra the same way you would for a strongly patterned repeat, rounding up rather than cutting the order close.

How do I paper around a socket inside the alcove?

Paper over it as normal, then cut the opening from the back once the strip is hung - pre-cutting the hole before hanging almost always misaligns it. It doesn't change the strip count, since the strip still has to run the full height regardless of the fitting.

Is a narrow alcove ever cheaper to paint than paper?

Sometimes. If the alcove is very narrow and the offcut waste is high, painting it in a matching or contrasting colour can cost less than a full strip of an expensive paper - as long as the chimney breast pattern doesn't rely on continuing across the alcove to read correctly.