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How to Wallpaper Corners

Wallpapering a room or installing a wall mural is a fairly easy, do-it-yourself project. However, some challenges can pop up, like wallpapering corners.

Many beginners are tempted to run a wall mural panel to the end of the wall, crease it, and continue onto the adjoining wall. This method doesn’t allow for the wallpaper panel to adhere properly, so the paper often pulls away from the wall not long after it’s hung. Although it requires a specific technique, you can get fantastic results wallpapering inside and outside corners by following these simple steps.

Wallpapering Inside Corners

Use this easy wrap-and-overlap seam method to wallpaper interior corners.

  1. Measure the distance between the edge of the last wallpaper panel and the corner. Add a small width of ½ inch so that it wraps the corner. Trim your next panel based on your measurements.
  2. Hang the wallpaper panel and smooth it into the corner.
  3. Allow the additional ½ inch to overlap onto the adjoining wall and smooth it out. Trim off any excess at the ceiling and baseboard.
  4. Align the next panel and allow it to overlap the ½ inch extension. Make sure the pattern or design matches with the previous panel.

Wallpapering Outside Corners

Outer corners pose two challenges when wallpapering. Since they physically stand out, they often face a lot of wear-and-tear as people brush against or knock into them. Outer corners, too, are more noticeable and can draw attention to any flaws. For these reasons, it is best to avoid placing a wallpaper or wall mural seam directly on the corner. The following steps will give you great results and ensure your wall mural’s longevity.

  1. Measure the distance between the edge of the last wallpaper panel and the corner. Add a width of 3 inches so that it wraps the corner. Trim your next panel based on your measurements.
  2. Hang the wallpaper panel and smooth it onto the wall.
  3. Wrap the additional 3-inch overlap onto the adjoining wall and smooth it out. Trim off any excess at the ceiling and baseboard.
  4. Align the next panel and allow it to slightly overlap the wrapped 3-inch extension so that it stops approximately ¼ inch from the corner. Make sure the pattern or design matches with the previous panel.

How to Wallpaper Around Trim

Another common obstacle while wallpapering is fitting around window and door trim. By following these steps, it’s an easy-to-accomplish task.

  1. Hang the wallpaper or wall mural panel and allow it to overlap the trim.
  2. Cut the wallpaper panel to expose the window or door. Allow approximately 2 inches overlapping the trim.
  3. Feel where the corner of the window or door frame is and cut a 45° angle from the corner to the edge of the wallpaper.
  4. Press the wall mural panel into the edge of the trim. Cut away the excess using a utility knife. Wipe away any glue that may have had contact with the trim.
  5. If necessary, wallpaper the areas above and below the window or door frame. Take care to make sure the pattern or design matches with previous panels.
  6. Repeat the previous steps to hang and trim the wall mural panel on the remaining side of the frame.
  7. Optional: To further avoid fraying or peeling wallpaper, place a clear plastic guard on the outer corners. It can be purchased at your local hardware retailer.

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