Roselindo · Wallpaper Estimator

How much wallpaper do you need?

Enter your room dimensions, choose a roll size, and we'll calculate exactly how many rolls to order — buffer included.

1Choose your material

Different materials have different roll sizes available.

2Room dimensions

Measure each wall you plan to cover. All measurements in feet.

ft
doors
windows

3Pick a roll size

All Roselindo rolls are 24" wide and install butt-jointed (edges placed seam-to-seam, no overlap), so each panel covers a full 24" of wall.

10%
Estimate

You'll need — rolls—

Wall area— sq ft
Doors / windows (info)— sq ft
Strips needed (24" panels, butt seam)— strips
With 10% buffer— strips
Strips per roll (at 9 ft ceiling)—
Coverage per roll (full strips)— sq ft
Price per roll—
  
Estimated total
—
Total coverage purchased
—

Estimates assume butt-seam installation: each 24"-wide panel sits edge-to-edge with the next, with no overlap. Strips are cut full-height from the roll length, and any leftover ends are not counted as coverage. Doors and windows are shown as informational area only — full-height strips still hang across openings and get trimmed (the buffer absorbs that waste). For large pattern repeats or first-time hangs, bump the buffer to 15–20%.

iHow to measure your room

A few minutes with a tape measure now will save you a return trip later. Here's the method we recommend.

  1. Measure each wall's width. Run a tape measure along the floor (or use a laser measure) from corner to corner for every wall you plan to cover. Round up to the nearest inch.
  2. Measure ceiling height. Measure from floor to ceiling at a few points — older homes are rarely perfectly level. Use the tallest reading.
  3. Note your openings. Count the doors and windows on the walls being papered. As a rule of thumb, a standard door takes up about 21 sq ft and a standard window about 15 sq ft. Skip this step if you'd rather paper around them with no deduction (more conservative).
  4. Pick a roll size. All Roselindo rolls are 24" wide; choose the length that minimizes waste for your wall height. A 9 ft ceiling, for example, fits cleanly into the 9 ft or 12 ft rolls.
  5. Add a buffer. 10% covers most rectangular rooms with simple cuts. Bump it to 15–20% if your design has a large pattern repeat, your walls are angled or have lots of trim, or this is your first time hanging.

Pattern repeats

Designs with a vertical "repeat" longer than ~12" lose a few inches per strip when matching the pattern. For bold or large-scale prints, add 5–10% on top of the standard buffer.

Sloped or vaulted ceilings

Measure the tallest point, not the average. Your installer will trim each strip to fit, but they need the full length to start with.

Accent wall vs. full room

For a single feature wall, just enter that one wall. Switch to "Wall by wall" mode and remove the others.

Order a swatch first

Roselindo offers a 1×2 ft swatch to confirm color, scale, and material in your space before committing to a full order.

The math behind the estimate

Roselindo panels are 24" wide and install edge-to-edge with no overlap (butt-jointed), so each panel covers a full 24" of wall. For each wall, divide its width by the panel width and round up — each wall counts on its own:

Strips per wall = ⌈ Wall width (inches) ÷ 24" ⌉

Add up the strips across all walls, then add your buffer to absorb trim around doors/windows, mistakes, and pattern matching:

Strips needed = ⌈ Σ strips per wall × (1 + Buffer ÷ 100) ⌉

From a single roll, you can cut as many full-height strips as fit in its length:

Strips per roll = ⌊ Roll length ÷ Ceiling height ⌋

Finally, divide the strips you need by what one roll provides, and round up:

Rolls = ⌈ Strips needed ÷ Strips per roll ⌉