How to get a stable corner when wallpapering?

To get a stable corner that won’t crack, the wallpaper needs to overlap the corner by 1 cm. Start by measuring the distance from the corner to the previous strip. Measure both up and down. If the measurements are different, use the largest measurement.

If you have a pattern on your wallpaper, you’ll also need to match the pattern with the previous one to see where the wallpaper needs to be trimmed.