Smoothing Uneven Walls Before Wallpapering

[Tomhanks]

Hi there!

What are the best methods or tools for smoothing out uneven walls before wallpapering? What can be done to prevent seams from showing after installation?

[FatimaandAhmed]

Hi, Tomhanks!

To get the best results when wallpapering, it's important to start with a smooth, even surface. If the walls are slightly uneven or have minor imperfections, a good approach is to use a skim coat of joint compound to fill in any low spots, then sand it smooth once dry. For more significant irregularities, a thicker application may be needed, followed by careful sanding. If the wall has old texture, such as orange peel or knockdown, sanding it down or applying a lining paper can help create a more even base.

To prevent wallpaper seams from showing, make sure to properly prime the wall with a wallpaper-specific primer, which helps with adhesion and prevents the paper from soaking up too much moisture. When installing, slightly overlapping the edges and then double cutting (trimming through both layers with a sharp blade) can create seamless joints. Also, pressing the seams gently with a seam roller but not too hard to avoid squeezing out the adhesive helps them blend in better. Taking the time to prep the wall properly and using quality adhesive will make a big difference in achieving a flawless finish.